A ball is thrown vertically downward with a velocity of 20 m/s from the top of a tower
PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
A ball is thrown vertically downward with a velocity of 20 m/s from the top of a tower. It hits the ground after some time with a velocity of 80 m/s. The height of the tower is: (Given g=10m/s2)
(a) 340 m
(b) 320 m
(c) 300 m
(d) 360 m