Question

A stone released from top of tower of height 19.6 m Calculate the final velocity before touching the ground Gravity=9.8m/s

Answer 1

v=19.6m/s

Explanation:

Initial Velocity u=0

Fianl velocity v=?

Height, s=19.6m

By third equation of motion

v

2

=u

2

+2gs

v

2

=0+2×9.8×19.6

v

2

=384.16

⇒v=19.6m/s

HOPE IT HELPS

Answer 2

final velocity=0

If an object is released from a certain height then v=0