Velocity-time graph for a car is semicir...

Velocity-time graph for a car is semicircle as shown here. Which of the following is correct:

A

Car must move in circular path.

B

Acceleration of car is never zero.

C

Mean spped of the aprticel is `pi//4 m//s`.

D

The car makes a turn once during its motion.

Verified by Experts

The correct Answer is:

C

Car is moving in straight line which changing velcoity.
`V_(av) = (distance)/(time) rArr V_(av) = (pia.b)/(2xx2) rArr V_(av) = (pi)/(4)`

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