Question

How tall is the building if a ball is thrown horizontally with a velocity of 22.2 m/s from the roof of the building and lands 36 m from the base of the building?

Answer 1

Time of movement of the ball

$t=36/22.2=1.62\ (s)$ . So,

$h=gt^2/2=9.8\cdot1.62^2/2=12.86\ (m)$ . Answer