Acceleration
Q1.
Figure 1 shows the velocity-time graph for a car driven along a straight road.
Figure 1

(a)     From B to C the car is moving at a constant velocity.
Complete the sentence.
Choose the answer from the box.
 
equal to	greater than	less than	
From B to C the forward driving force is _________________________ the
backward resistive force.
(1)
(b)     From C to D the car is slowing down.
What word is used to describe the motion of an object that is slowing down?
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(1)
(c)     Between A and B the car is accelerating.
Calculate the acceleration of the car between A and B.
Use the equation:

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Acceleration = ____________________ m/s2
(2)
(d)     Figure 2 shows how the stopping distance of a car depends on the speed of the car.
Figure 2

Describe what happens to the stopping distance of the car when the speed of the car doubles.
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(2)
(Total 6 marks)