Question

a stone thrown upwards from the top of a tower 85m high reaches the ground in 5s find (1) the greatest height above the ground (2) the velocity with which it teaches the ground and (3) the time taken to reach the maximum height take g= 10ms-2​

Answer 1

Answer:

zero

Explanation:

1. The displacement is '-85' and acceleration is '-10 ' as because the stone is coming to the ground (downward direction) so the negative sign comes. Using the formula, At the maximum height above the level of ground, the stone comes to momentary rest. That means its velocity becomes zero.