Question

A ball is thrown vertically upward with velocity 40 m/s. Total distance covered by ball before striking the ground is 10n meter. The value of n is

Answer 1

Answer:

using equation v^2=u^2 - 2gh

we get u^2 = 2gh on substituting h= 80 m so a two way journey would amount to 160m or value of n is 16