Question

when will you say a body is in (1)unifrom acceleration? (2)non uniform acceleration

Answer 1

Uniform Acceleration
It is the acceleration in which the object changes its velocity with equal intervals of time .

Non-uniform Acceleration
It is the acceleration in which the object changes its velocity with unequal intervals of time , The acceleration may be positive acceleration ( increasing velocity ) , Zero acceleration ( uniform velocity ) , Negative acceleration and in this case it is called deceleration ( decreasing velocity ) .

When the velocity of object increases with time , This is called positive acceleration , when the velocity of object is constant with time , This is called zero acceleration , when the velocity of object decreases with time , This is called negative acceleration .

Answer 2

when a body describes equal change in velocity in equal intervals of time then the body is said to be at :-uniform acceleration
if the velocity of the body changes by unequal amount in equal intervals of time it is said to be in :-non uniform acceleration
hope this answer helps you