Motion Study Materials for Competitive Exam Preparation

Motion

Q. An object moves in a straight line with a uniform speed of 10 m/s. How far will it travel in 15 seconds? (2023)

A. 100 m
B. 120 m
C. 150 m
D. 200 m

Solution

Distance = Speed × Time = 10 m/s × 15 s = 150 m.

Correct Answer: C — 150 m

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Q. An object moves in a straight line with a uniform speed of 30 m/s. How far will it travel in 15 seconds? (2022)

A. 300 m
B. 450 m
C. 600 m
D. 750 m

Solution

Distance = Speed × Time = 30 m/s × 15 s = 450 m.

Correct Answer: C — 600 m

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Q. An object moves with a uniform speed of 15 m/s. How far will it travel in 10 seconds? (2022)

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. If a body is moving with a uniform acceleration of 2 m/s², what will be its velocity after 5 seconds if it starts from rest? (2023)

A. 5 m/s
B. 10 m/s
C. 15 m/s
D. 20 m/s

Solution

Using the formula v = u + at, where u = 0, a = 2 m/s², t = 5 s. v = 0 + (2 × 5) = 10 m/s.

Correct Answer: B — 10 m/s

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Q. If a car accelerates from rest at a rate of 2 m/s², what will be its speed after 5 seconds? (2023)

A. 5 m/s
B. 10 m/s
C. 15 m/s
D. 20 m/s

Solution

Speed = Initial speed + (Acceleration × Time) = 0 + (2 m/s² × 5 s) = 10 m/s.

Correct Answer: B — 10 m/s

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Q. If a car accelerates uniformly from rest to a speed of 25 m/s in 10 seconds, what is the distance covered during this time? (2023)

A. 125 m
B. 150 m
C. 200 m
D. 250 m

Solution

Distance = ut + (1/2)at². Here, u = 0, a = (25-0)/10 = 2.5 m/s². Distance = 0 + (1/2)(2.5)(10²) = 125 m.

Correct Answer: A — 125 m

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Q. If a car accelerates uniformly from rest to a speed of 72 km/h in 10 seconds, what is its acceleration? (2023)

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

Solution

Acceleration = (Final Speed - Initial Speed) / Time = (20 m/s - 0) / 10 s = 2 m/s².

Correct Answer: A — 2 m/s²

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Q. If a cyclist travels at a speed of 15 km/h for 1 hour and then at 20 km/h for 2 hours, what is the average speed for the entire journey? (2022)

A. 17 km/h
B. 18 km/h
C. 19 km/h
D. 20 km/h

Solution

Total distance = 15 km + 40 km = 55 km; Total time = 1 h + 2 h = 3 h; Average speed = Total distance / Total time = 55 km / 3 h = 18.33 km/h.

Correct Answer: B — 18 km/h

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Q. If a vehicle travels 100 km in 2 hours and then 50 km in 1 hour, what is its average speed for the entire trip? (2019)

A. 50 km/h
B. 60 km/h
C. 70 km/h
D. 75 km/h

Solution

Total distance = 100 km + 50 km = 150 km; Total time = 2 h + 1 h = 3 h. Average speed = Total distance / Total time = 150 km / 3 h = 50 km/h.

Correct Answer: C — 70 km/h

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Motion

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