# Velocity of the ball when it impacts on the ground.

## A ball is released from a height of 10m from ground, what will be the velocity of the ball when it impacts on the ground. Gravitational Acceleration g=9.8m/s^{2} .

a. 15 m/s

b. 20 m/s

c. 14 m/s

d. Can not say

Correct Answer : c. 14 m/s

**Explanation :**

As ball is released the initial velocity u is zero. Taking acceleration a as g=9.8m/s^{2} using motion equation v^{2} = u^{2}+ 2as we can find final velocity v that will be 14 m/s.