Question

A playground is surrounded by a fence 2.0 m high. A boy who plays in the
playground kicks a ball vertically upward from a height of 0.2 m with a speed of
10 m/s. How much time does the ball spend above the height of the fence?

Answer 1

Draw a diagram, make a variables list, and I think use the big 5 Kinematic equations.

Answer 2

http://openstudy.com/users/salini#/updates/4f36922ce4b0fc0c1a0cee08

Answer 3

thx very much