Question

can a body have acceleration even at rest,? if yes give an example

Answer 1

Thus, even though the velocity of an object at rest must be zero, acceleration can clearly be non-zero for objects at rest. ... Zero Almost equal to the acceleration due to gravity g .

Answer 2

Yes ,
for ex. the simple ex. for this is when we throw an apple straight up to air .At the highest point,the apple is momentarily at rest .However .at all points of the trajectories including the one is -g.