Question

rate of change of velocity is called

Answer 1

hi friend__________
rate of change of velocity is called Acceleration
Acceleration:- The rate of increase in the velocity of a moving body, expressed in metres per second squared,m/s^2 .The acceleration due to gravity is the A.shown by a body falling freely under the influence of gravity, either in a vacuum or after allowing for the retardation due to air resistance; it varies slightly at different latitudes.Retardation is actually A. in the reverse direction .e.g. a rising rocket is actually being accelerated towards the centre of the earth_________________ ____________
^_^Hopes it helped you !!!!!!
DR.ABINASH BORGOHAIN
MBBS,MD( MEDICINE )

Answer 2

rate of change of velocity is called acceleration.
___________________________

acceleration is a vector quantity. it has both magnitude and direction.
___________________________

SI unit of acceleration is m/s^2.
___________________________

it can be positive as well as negative.

negative acceleration is called retardation.
___________________________

acceleration = change of velocity / time