Question

define velocity( class 9)

Answer 1

Answer:

Velocity is the rate of motion,speed or action. It is a vector quantity so it has both magnitude and direction.

velocity is expressed in meters/second or m/s. The SI unit of velocity is meter per second (m/s).

Formula:- Velocity =Speed/Time

Example:-a car driving at 52 miles per hour.....

Answer 2

Velocity is defined as the rate of change of motion or object's position with respect to a frame of reference and time.

• Velocity is a vector quantity which means we need both magnitude and direction.
• It is also called the rate of change of displacement.
• When there is a change in magnitude or direction of the velocity of a body then the body is said to be accelerating.
• There are 2 types of velocity: Initial velocity and final velocity
• S.I unit is m/s.