The distance traveled by a car in the x-direction is shown. When the car changes speed for t = 10 s to 15 s, it does so uniformly. The acceleration of the car at 5 s ____ acceleration at 20 s.
A) is less than the
B) is equal to the
C) is greater than the
D) cannot be determined for fore. depends on what happens when it is accelerating between 10 and 15 s

Question

The distance traveled by a car in the x-direction is shown. When the car changes speed for t = 10 s to 15 s, it does so uniformly.  The acceleration of the car at 5 s ____ acceleration at 20 s.
A) is less than the 
B) is equal to the 
C) is greater than the 
D) cannot be determined for fore. depends on what happens when it is accelerating between 10 and 15 s

Quizplus · Accepted Answer

Since the car changes speed uniformly between t=10s and t=15s, the acceleration during that time period will also be constant. Therefore, the acceleration at t=5s and t=20s will be equal to the acceleration during the uniform speed change, which is the same at any point during that time period.

The Distance Traveled by a Car in the X-Direction Is