The driver of a moving car applies brakes and stops at a traffic signal. Which effect of force can be seen here?

Change in direction of motion

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Change in shape

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Change in speed

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All of the above

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Solution

The correct option is C Change in speed
A force can have the following effects:

Change the state of motion of an object

Change the direction of a moving object

Change the shape and size of an object

In the given case, when the driver applies brakes on a moving car, it changes the car’s speed by slowing it down. However, it does not change the car's shape, mass, or direction.

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Similar questions

A driver of a car travelling at 52 km h⁻¹ applies the brakes and accelerates uniformly in the opposite direction. The car stops in 5 s. Another driver going at 3 km h⁻¹ in another car applies his brakes slowly and stops in 10 s. On the same graph paper, plot the speed versus time graphs for the two cars. Which of the two cars travelled farther after the brakes were applied?

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Q. A car moving at a constant speed of

54 k m / h

comes to rest in

2.5 s e c o n d s

. The car covers

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after driver applies the brakes. The total force applied to stop the car is

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. Calculate the power dissipated in stopping the car.

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