Question

a stone is thrown vertically upward with an initial velocity u from the top of a tower it reaches the ground with velocity 3u you the height of the Tower is

Answer 1

H = (v² - u²) / (2g)

H = (9u² - u²) / (2g)

H = 8u² / (2g)

H = 4u²/g

Height of the tower is 4u²/g