Kinematics Study Materials for Competitive Exams

Kinematics

Motion in One Dimension Motion in Two Dimensions Relative Motion

Q. An object is thrown vertically upwards with a speed of 20 m/s. How long will it take to reach the maximum height?

A. 1 s
B. 2 s
C. 3 s
D. 4 s

Solution

Time to reach maximum height (t) = u/g = 20/9.8 = 2.04 s.

Correct Answer: B — 2 s

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Q. An object is thrown vertically upwards with a speed of 30 m/s. How high will it rise before coming to rest?

A. 45 m
B. 60 m
C. 90 m
D. 120 m

Solution

Using the formula: h = (v² - u²) / (2g), where v = 0 m/s, u = 30 m/s, g = 9.8 m/s². h = (0 - 30²) / (2 * -9.8) = 45.92 m, approximately 45 m.

Correct Answer: B — 60 m

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Q. An object is thrown vertically upwards with a speed of 30 m/s. How high will it rise before coming to rest momentarily?

A. 45 m
B. 60 m
C. 90 m
D. 135 m

Solution

Using the formula: h = (v² - u²) / (2g), where v = 0 m/s (at the highest point), u = 30 m/s, g = 9.8 m/s². h = (0 - 30²) / (2 * -9.8) = 45.92 m, approximately 45 m.

Correct Answer: B — 60 m

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Q. An object moves in a circular path with a radius of 10 m at a speed of 5 m/s. What is the period of the motion?

A. 2π s
B. 4π s
C. 10 s
D. 20 s

Solution

Period (T) = (2πr)/v = (2π * 10)/5 = 4π s.

Correct Answer: A — 2π s

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Q. An object moves in a straight line with a velocity of 10 m/s. If it accelerates at 2 m/s² for 5 seconds, what will be its final velocity?

A. 20 m/s
B. 30 m/s
C. 10 m/s
D. 15 m/s

Solution

Final velocity (v) = u + at = 10 + (2 * 5) = 20 m/s.

Correct Answer: B — 30 m/s

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Q. An object moves in a straight line with an acceleration of 2 m/s². If its initial velocity is 3 m/s, what will be its velocity after 5 seconds?

A. 8 m/s
B. 10 m/s
C. 13 m/s
D. 15 m/s

Solution

Final velocity (v) = u + at = 3 + (2 * 5) = 13 m/s.

Correct Answer: C — 13 m/s

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Q. An object moves in a straight line with an acceleration of 2 m/s². If its initial velocity is 10 m/s, what will be its velocity after 5 seconds?

A. 10 m/s
B. 20 m/s
C. 30 m/s
D. 40 m/s

Solution

Final velocity (v) = u + at = 10 + 2*5 = 20 m/s.

Correct Answer: C — 30 m/s

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Q. An object moves in a straight line with an acceleration of 2 m/s². If its initial velocity is 5 m/s, what will be its velocity after 3 seconds?

A. 5 m/s
B. 8 m/s
C. 11 m/s
D. 14 m/s

Solution

Final velocity (v) = u + at = 5 + (2 * 3) = 11 m/s.

Correct Answer: C — 11 m/s

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Q. An object moves in a straight line with an initial velocity of 5 m/s and accelerates at 2 m/s². What will be its velocity after 4 seconds?

A. 5 m/s
B. 13 m/s
C. 15 m/s
D. 20 m/s

Solution

Using the formula: final velocity = initial velocity + acceleration * time = 5 + 2 * 4 = 13 m/s.

Correct Answer: B — 13 m/s

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Q. An object moves with a constant speed of 15 m/s for 10 seconds. What distance does it cover?

A. 100 m
B. 150 m
C. 200 m
D. 250 m

Solution

Distance = speed * time = 15 m/s * 10 s = 150 m.

Correct Answer: B — 150 m

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Q. An object moves with a uniform speed of 15 m/s. How far will it travel in 20 seconds?

A. 150 m
B. 300 m
C. 450 m
D. 600 m

Solution

Distance = speed * time = 15 m/s * 20 s = 300 m.

Correct Answer: B — 300 m

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Q. If a boat can travel 20 km upstream in 4 hours, what is the speed of the current if the speed of the boat in still water is 10 km/h?

A. 2 km/h
B. 3 km/h
C. 4 km/h
D. 5 km/h

Solution

Speed upstream = distance/time = 20/4 = 5 km/h. Speed of current = speed of boat - speed upstream = 10 - 5 = 5 km/h.

Correct Answer: A — 2 km/h

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Q. If a boat can travel at 15 km/h in still water and the current is 5 km/h, what is the speed of the boat upstream?

A. 10 km/h
B. 15 km/h
C. 20 km/h
D. 25 km/h

Solution

Speed upstream = speed of boat - speed of current = 15 - 5 = 10 km/h.

Correct Answer: A — 10 km/h

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Q. If a car moving with a speed of 30 m/s applies brakes and comes to a stop in 5 seconds, what is the acceleration?

A. -6 m/s²
B. -5 m/s²
C. -4 m/s²
D. -3 m/s²

Solution

Using the formula: acceleration = (final velocity - initial velocity) / time. Acceleration = (0 - 30) / 5 = -6 m/s².

Correct Answer: B — -5 m/s²

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Q. If a car moving with a speed of 30 m/s comes to a stop in 5 seconds, what is its deceleration?

A. 2 m/s²
B. 3 m/s²
C. 4 m/s²
D. 5 m/s²

Solution

Deceleration = (final velocity - initial velocity) / time = (0 - 30) / 5 = -6 m/s².

Correct Answer: A — 2 m/s²

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Q. If a car travels 100 m in the first 5 seconds and 150 m in the next 5 seconds, what is its average speed over the 10 seconds?

A. 25 m/s
B. 30 m/s
C. 35 m/s
D. 40 m/s

Solution

Total distance = 100 m + 150 m = 250 m. Total time = 10 s. Average speed = total distance / total time = 250 m / 10 s = 25 m/s.

Correct Answer: B — 30 m/s

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Q. If a car travels at a speed of 80 km/h and a bike travels at 60 km/h, how far apart will they be after 1 hour if they start from the same point and travel in the same direction?

A. 20 km
B. 30 km
C. 40 km
D. 50 km

Solution

Relative speed = 80 - 60 = 20 km/h. Distance apart after 1 hour = 20 km.

Correct Answer: A — 20 km

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Q. If a car travels with a uniform speed of 60 km/h, how long will it take to cover a distance of 150 km?

A. 2.5 h
B. 3 h
C. 3.5 h
D. 4 h

Solution

Time = distance / speed = 150 km / 60 km/h = 2.5 h.

Correct Answer: A — 2.5 h

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Q. If a cyclist travels at 15 km/h and a pedestrian walks at 5 km/h, how much faster is the cyclist than the pedestrian?

A. 5 km/h
B. 10 km/h
C. 15 km/h
D. 20 km/h

Solution

Difference in speed = 15 - 5 = 10 km/h.

Correct Answer: B — 10 km/h

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Q. If a train travels at a speed of 72 km/h, how long will it take to cover a distance of 180 km?

A. 2 h
B. 2.5 h
C. 3 h
D. 3.5 h

Solution

Time = distance / speed = 180 km / (72 km/h) = 2.5 h.

Correct Answer: C — 3 h

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Q. If two cars are moving in opposite directions at speeds of 40 km/h and 60 km/h, what is their relative speed?

A. 100 km/h
B. 20 km/h
C. 40 km/h
D. 60 km/h

Solution

Relative speed = Speed of car 1 + Speed of car 2 = 40 km/h + 60 km/h = 100 km/h.

Correct Answer: A — 100 km/h

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Q. If two cars are moving towards each other at speeds of 40 km/h and 60 km/h, how long will it take for them to meet if they are 200 km apart?

A. 1 hour
B. 2 hours
C. 3 hours
D. 4 hours

Solution

Relative speed = 40 km/h + 60 km/h = 100 km/h. Time = Distance / Relative Speed = 200 km / 100 km/h = 2 hours.

Correct Answer: B — 2 hours

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Q. If two objects are moving in opposite directions with speeds of 10 m/s and 15 m/s, what is their relative speed?

A. 5 m/s
B. 25 m/s
C. 15 m/s
D. 10 m/s

Solution

Relative speed = Speed of object 1 + Speed of object 2 = 10 m/s + 15 m/s = 25 m/s.

Correct Answer: B — 25 m/s

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Q. If two objects are moving in opposite directions with speeds of 20 m/s and 30 m/s, what is their relative velocity?

A. 10 m/s
B. 50 m/s
C. 20 m/s
D. 30 m/s

Solution

Relative velocity = Speed of object 1 + Speed of object 2 = 20 m/s + 30 m/s = 50 m/s.

Correct Answer: B — 50 m/s

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Q. If two objects are moving in opposite directions with speeds of 40 m/s and 60 m/s, what is their relative speed?

A. 20 m/s
B. 40 m/s
C. 60 m/s
D. 100 m/s

Solution

Relative speed = Speed of object 1 + Speed of object 2 = 40 m/s + 60 m/s = 100 m/s.

Correct Answer: D — 100 m/s

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Q. If two objects are moving towards each other with speeds of 40 m/s and 60 m/s, how long will it take for them to collide if they are 200 m apart?

A. 1 s
B. 2 s
C. 3 s
D. 4 s

Solution

Relative speed = 40 m/s + 60 m/s = 100 m/s. Time = Distance / Relative speed = 200 m / 100 m/s = 2 s.

Correct Answer: B — 2 s

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Q. Two cars are moving towards each other at speeds of 50 km/h and 70 km/h. If they are 200 meters apart, how long will it take for them to meet?

A. 5 seconds
B. 10 seconds
C. 15 seconds
D. 20 seconds

Solution

Relative speed = 50 km/h + 70 km/h = 120 km/h = 33.33 m/s. Time = Distance/Speed = 200 m / 33.33 m/s = 6 seconds.

Correct Answer: B — 10 seconds

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Q. Two cars are moving towards each other with speeds of 50 km/h and 70 km/h. How long will it take for them to collide if they are 200 meters apart?

A. 5 seconds
B. 10 seconds
C. 15 seconds
D. 20 seconds

Solution

Relative speed = 50 km/h + 70 km/h = 120 km/h = 33.33 m/s. Time = Distance / Relative speed = 200 m / 33.33 m/s = 6 seconds.

Correct Answer: B — 10 seconds

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Q. Two cars start from the same point and travel in opposite directions at speeds of 70 km/h and 50 km/h. How far apart will they be after 2 hours?

A. 240 km
B. 220 km
C. 200 km
D. 180 km

Solution

Relative speed = 70 + 50 = 120 km/h. Distance apart after 2 hours = 120 × 2 = 240 km.

Correct Answer: A — 240 km

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Q. Two cars start from the same point and travel in opposite directions. If car A travels at 70 km/h and car B at 50 km/h, how far apart will they be after 2 hours?

A. 240 km
B. 220 km
C. 200 km
D. 180 km

Solution

Relative speed = 70 + 50 = 120 km/h. Distance apart after 2 hours = 120 * 2 = 240 km.

Correct Answer: A — 240 km

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Showing 181 to 210 of 223 (8 Pages)

Kinematics MCQ & Objective Questions

Kinematics is a fundamental topic in physics that deals with the motion of objects. Understanding kinematics is crucial for students preparing for school exams and competitive tests, as it forms the basis for many important concepts in physics. Practicing MCQs and objective questions on kinematics not only enhances conceptual clarity but also boosts confidence, helping students score better in their exams.

What You Will Practise Here

Basic concepts of motion: distance, displacement, speed, and velocity
Acceleration and its types: uniform and non-uniform acceleration
Equations of motion for uniformly accelerated motion
Graphical representation of motion: distance-time and velocity-time graphs
Relative motion and its applications
Projectile motion: key concepts and formulas
Important kinematics problems and their solutions

Exam Relevance

Kinematics is a significant topic in various examinations, including CBSE, State Boards, NEET, and JEE. It frequently appears in the form of multiple-choice questions, numerical problems, and conceptual queries. Students can expect questions that require them to apply kinematic equations, interpret graphs, and solve real-world motion problems. Mastering this topic is essential for achieving a good score in both school and competitive exams.

Common Mistakes Students Make

Confusing distance with displacement and failing to recognize their differences
Misapplying the equations of motion, especially in non-uniform acceleration scenarios
Overlooking the significance of units in calculations
Struggling with interpreting motion graphs and extracting relevant information
Neglecting to consider the direction of vectors in problems involving velocity and acceleration

FAQs

Question: What are the key formulas in kinematics?
Answer: The key formulas include the three equations of motion: v = u + at, s = ut + 1/2 at², and v² = u² + 2as.

Question: How can I improve my kinematics problem-solving skills?
Answer: Regular practice of kinematics MCQ questions and understanding the underlying concepts will significantly enhance your problem-solving abilities.

Don't wait any longer! Start solving kinematics practice MCQs today to test your understanding and prepare effectively for your exams. Your success in mastering kinematics is just a question away!

Kinematics

Kinematics MCQ & Objective Questions

What You Will Practise Here

Exam Relevance

Common Mistakes Students Make

FAQs

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