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Q. If a car does 2000 J of work in moving a distance of 50 m, what is the average force exerted by the car? (2000)

A. 40 N
B. 50 N
C. 60 N
D. 30 N

Solution

Average Force (F) = Work done (W) / Distance (d) = 2000 J / 50 m = 40 N.

Correct Answer: A — 40 N

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Q. If a car does 3000 J of work in moving a distance of 150 m, what is the average force exerted by the car? (2023)

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

Solution

Average Force = Work / Distance = 3000 J / 150 m = 20 N

Correct Answer: B — 30 N

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Q. If a car does 600 J of work in moving a distance of 30 m, what is the average force exerted by the car? (2023)

A. 20 N
B. 15 N
C. 25 N
D. 10 N

Solution

Average Force (F) = Work (W) / Distance (d) = 600 J / 30 m = 20 N.

Correct Answer: A — 20 N

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Q. If a car does 6000 J of work in moving a distance of 100 m, what is the average force exerted by the car? (2023)

A. 60 N
B. 50 N
C. 70 N
D. 80 N

Solution

Average Force = Work / Distance = 6000 J / 100 m = 60 N

Correct Answer: A — 60 N

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Q. If a car engine has a power output of 150 kW, how much work can it do in 2 minutes?

A. 18000 J
B. 9000 J
C. 30000 J
D. 180000 J

Solution

Power is the rate of doing work. Work done can be calculated as W = P * t. Here, P = 150 kW = 150000 W and t = 2 minutes = 120 seconds. Thus, W = 150000 W * 120 s = 18000000 J.

Correct Answer: D — 180000 J

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Q. If a car is moving on a flat road and suddenly turns, what type of friction is responsible for the car's ability to turn without skidding?

A. Static friction
B. Kinetic friction
C. Rolling friction
D. Fluid friction

Solution

Static friction is responsible for providing the necessary centripetal force to keep the car moving in a circular path without skidding.

Correct Answer: A — Static friction

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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 kilometers in 2 hours, what is its speed in meters per second?

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

Solution

Speed = distance/time = (100000 m)/(7200 s) = 27.78 m/s, approximately 20 m/s.

Correct Answer: B — 20 m/s

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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 120 km at a speed of 60 km/h and then 180 km at a speed of 90 km/h, what is the total time taken for the journey?

A. 3 hours
B. 4 hours
C. 5 hours
D. 6 hours

Solution

Time for first part = 120/60 = 2 hours; Time for second part = 180/90 = 2 hours. Total time = 2 + 2 = 4 hours.

Correct Answer: B — 4 hours

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Q. If a car travels 120 km in 2 hours, what is its speed in km/h?

A. 50 km/h
B. 60 km/h
C. 70 km/h
D. 80 km/h

Solution

Speed = Distance / Time = 120 km / 2 hours = 60 km/h.

Correct Answer: B — 60 km/h

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Q. If a car travels 150 km in 2 hours and 30 minutes, what is its average speed? (2022)

A. 55 km/h
B. 60 km/h
C. 65 km/h
D. 70 km/h

Solution

Total time = 2.5 hours. Average speed = Distance / Time = 150 km / 2.5 hours = 60 km/h.

Correct Answer: B — 60 km/h

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Q. If a car travels 150 km in 2 hours, what is its speed in km/h?

A. 60
B. 70
C. 75
D. 80

Solution

Speed = Distance / Time = 150 km / 2 hours = 75 km/h.

Correct Answer: C — 75

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Q. If a car travels 150 km in 3 hours, what is its average speed in km/h?

A. 45
B. 50
C. 55
D. 60

Solution

Average speed = Total distance / Total time = 150 km / 3 hours = 50 km/h.

Correct Answer: B — 50

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Q. If a car travels 150 km in 3 hours, what is its average speed? (2019)

A. 45 km/h
B. 50 km/h
C. 55 km/h
D. 60 km/h

Solution

Average speed = Total distance / Total time = 150 km / 3 hours = 50 km/h.

Correct Answer: B — 50 km/h

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Q. If a car travels 150 km with a time measurement of 2.5 hours, what is the speed with an uncertainty of ±0.1 hours?

A. 60 km/h
B. 62 km/h
C. 58 km/h
D. 64 km/h

Solution

Speed = Distance / Time = 150 km / 2.5 h = 60 km/h.

Correct Answer: A — 60 km/h

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Q. If a car travels 60 km in 1 hour and 30 minutes, what is its average speed in km/h?

A. 40
B. 45
C. 50
D. 55

Solution

The total time taken is 1.5 hours. Average speed = total distance / total time = 60 km / 1.5 h = 40 km/h.

Correct Answer: B — 45

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Q. If a car travels 60 km in 1 hour, how far will it travel in 2.5 hours at the same speed? (2019)

A. 150 km
B. 120 km
C. 180 km
D. 100 km

Solution

Distance = Speed × Time = 60 km/h × 2.5 h = 150 km.

Correct Answer: A — 150 km

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Q. If a car travels 60 km in 1 hour, how far will it travel in 2.5 hours? (2019)

A. 120 km
B. 150 km
C. 180 km
D. 200 km

Solution

Distance = speed × time = 60 km/h × 2.5 h = 150 km.

Correct Answer: B — 150 km

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Q. If a car travels 60 km in 1 hour, how far will it travel in 3 hours at the same speed? (2020)

A. 120 km
B. 180 km
C. 150 km
D. 200 km

Solution

Distance = speed × time. Thus, distance = 60 km/h × 3 h = 180 km.

Correct Answer: B — 180 km

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Q. If a car travels 60 km in 1 hour, how far will it travel in 3 hours?

A. 120 km
B. 180 km
C. 150 km
D. 200 km

Solution

Distance = speed × time = 60 km/h × 3 h = 180 km.

Correct Answer: B — 180 km

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Q. If a car travels 60 km in 1 hour, how far will it travel in 3.5 hours? (2022)

A. 180 km
B. 200 km
C. 210 km
D. 220 km

Solution

Distance = speed × time = 60 km/h × 3.5 h = 210 km.

Correct Answer: C — 210 km

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Q. If a car travels 60 km in 1 hour, how long will it take to travel 180 km at the same speed? (2019)

A. 2 hours
B. 3 hours
C. 4 hours
D. 1.5 hours

Solution

Time = Distance/Speed = 180 km / 60 km/h = 3 hours.

Correct Answer: B — 3 hours

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Q. If a car travels 60 km in 1 hour, what is its speed in m/s?

A. 10 m/s
B. 15 m/s
C. 20 m/s
D. 25 m/s

Solution

Speed in m/s = (distance in km * 1000) / (time in hours * 3600). Here, speed = (60 * 1000) / (1 * 3600) = 16.67 m/s, which rounds to 20 m/s.

Correct Answer: C — 20 m/s

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Q. If a car travels 60 km in 1 hour, what is its speed in meters per second?

A. 16.67 m/s
B. 20 m/s
C. 25 m/s
D. 30 m/s

Solution

Speed in m/s = (60 km * 1000 m/km) / (3600 s) = 16.67 m/s.

Correct Answer: A — 16.67 m/s

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Q. If a car travels at a speed of 60 km/h, how far will it travel in 2 hours? (2022)

A. 120 km
B. 100 km
C. 150 km
D. 90 km

Solution

Distance = Speed × Time = 60 km/h × 2 h = 120 km.

Correct Answer: A — 120 km

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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 at a speed of 80 km/h, how long will it take to cover 200 km? (2019)

A. 2.5 hours
B. 3 hours
C. 2 hours
D. 4 hours

Solution

Time = Distance / Speed = 200 km / 80 km/h = 2.5 hours.

Correct Answer: A — 2.5 hours

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Q. If a car travels at a speed of 80 km/h, how long will it take to cover 240 km? (2019)

A. 2 hours
B. 3 hours
C. 4 hours
D. 5 hours

Solution

Time = Distance / Speed = 240 km / 80 km/h = 3 hours.

Correct Answer: C — 4 hours

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Major Competitive Exams

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