Question

A yower of height h covers distance of h/2 in last second . then find the height of tower

Answer 1

The distance covered by the ball in n th second is given by,

S n = u + ½a(2n - 1)

=> h/2 = 0 + ½ × g × (2n - 1)

=> 2n – 1 = h/g

=> n = ½ (h/g + 1)

So, the ball remains in air for time ½ (h/g + 1).