What is velocity?

1 Answer

Answer:

#"Velocity" = (" Change in displacement " or trianglebarx)/( "Change in time " or trianglet )#

Explanation:

To define the fastness of an motion , we need to find how fast the space coordinates ( position vector ) of a particle relative to a fixed reference point changes with time . It is called as " Velocity ".

Velocity is also defined as the rate of change of displacement .

Velocity is a vector quantity . It depends on both magnitude and direction of the object .

When a particle moves , it's positive vector #barr# must change in direction or magnitude or both ,Velocity is defined as the rate of change in direction or magnitude of #barr# with respect to time .

It is measured in #ms^-1# , # kmph # , #" miles per hour "# ,etc.

It has dimensional formula - #[M^0L^1T^-1]#
or simply - #[LT^-1]#