Q5.11 A truck starts from rest and accelerates uniformly at . At , a stone is dropped by a person standing on the top of the truck (6 m high from the ground). What are the (b) acceleration of the stone at ? (Neglect air resistance.)
When the stone is dropped, the stone comes only in effect of gravity.
So the acceleration of stone is 10 m/s2 and it acts in the downward direction.