Question

A cricket ball is hit so that it travels straight up in air and acquires the maximum height it's initial velocity is
A 29m/s
B 10m/s
C 15m/s
D 12.2m/s​

Answer 1

Answer:

B) 10m/s ....

Answer 2

Answer:

Initial velocity of the cricket ball is (c) 29.4 m/s

For a body thrown vertically upwards, the time to reach maximum height is given by

                   t = u/g          ------------------------(1)

                   t = time of travel = 3 s

                   u = initial velocity

                   g = acceleration due to gravity = 9.8 m/

At maximum height, final velocity is zero.

From (1), the initial velocity is

                  u = gt

                     = (9.8)(3)

                     = 29.4 m/s