Question

When a particle moves with constant velocity its average velocity, its instantaneous velocity and its speed all are equal. Is this statement true or false?

• A. True
• B. False

Answer 1

The correct option is A True

When a particle is moving with constant velocity then its magnitude and direction both are not changing means particle must travel in straight line. Also when the particle is moving in straight line with no acceleration then distance covered and displacement both will be the same in the same interval of time. Hence average velocity and average speed both will be same as

Average velocity $=\frac{\left(netdisplacement\right)}{time}$

Average speed$=\frac{\left(totaldistance\right)}{time}$.

Instantaneous velocity will be the same as velocity is not changing anywhere. It is true.