A car is moving in the positive direction along a straight highway and accelerates at a constant rate while going from point A to point B.If the acceleration is positive,increasing the speed of the car,when does the position where the average speed equals the instantaneous speed occur during the time interval from A to B? Assume the time interval is T.
A)T/2 from the start of the interval
B)before T/2 from the start of the interval
C)after T/2 from the start of the interval
D)It depends on the speed at the start of the time interval.

Question

Quizplus · Accepted Answer

The position where the average speed equals the instantaneous speed occurs at T/2 from the start of the interval due to the symmetry of the motion under constant acceleration.

A Car Is Moving in the Positive Direction Along a Straight