Question

. A ball thrown vertically upwards with a velocity of 20 ms-1 per second from the top of multi storey building. The height of a point of the point from where the ball is thrown as 25-0 metres from the ground. a) how high will the ball rise? and b) how long will it be before the ball hits the ground? Take g = 10 ms-1 (actual value is 9.8 ms-1).

Answer 1

Explanation:

key points:-

• velocity remain same at same level in 1d motion