Question

A ball is dropped from the top of a tower the distance covered by it in the last second is (9/25)th of the height of the tower what is the height of the tower.

(a) 122.5 m 

(b) 100.5 m

(c) 88.5 m

(d) 64.5

Answer 1

Answer is (a) 122.5 m

 h = (1/2) gt² and [1 – (9/25)]h = (1/2) g(t - 1)²