In a two dimensional motion,instantaneous speed `v_(0)` is a positive constant.Then which of the following are necessarily true?

Options

A. The average velocity is not zero at any time
B. Average acceleration must always vanish
C. Displacements in equal time intervals are equal
D. Equal path lengths are traversed in equal intervals

Answer

D

Explanation

We know that
speed, `v_(0)=("total distance travelled")/("time taken")`
Hence, total distance travelled = Path length
`=("speed")xx"time taken"`