ADITYA KUMAR Student Expert 10th Jun, 2020

Hi

Only body which is in motion has velocity otherwise if it is in rest then it is zero

The velocity of an object in motion can be defined  a s the rate of change of  position of the object in motion with respect to time.

Velocity is equivalent to a speed in a specific  direction of motion

For example, 60 km/h to the east

Its SI unit is m/s

Thank you