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 (Take, ) [NEET 2020]
Given, u = 20 m/s, v = 80 m/s and h = ?
From kinematic equation of motion, v2 = u2 + 2gh
( Given, g = 10 m/s2)
= 300 m