projectile motion

Question

A ball is dropped from certain height and another ball is projected horizontally from the same point.Correct statement?

a-Both hit the ground at the same velocity

b-Both hit the ground at the same speed

c-The change of velocity during the path for both the balls is the same

d-The change of speed during the path for both the balls is the same

Answer 1

Option [c] is correct

For 1st particle final velocity have only vertical component of velocity.

 For 2nd particle, it will have horizontal as well as vertical component of velocity but the change in velocity is same for both particles.

Answer 2

The change in velocity is \(\sqrt{2gh}\) in both the cases.

Hence option (c) is correct i.e The change of velocity during the path for both the balls is the same