Question

A ball of mass 3kg collides with a wall with velocity 10m/sec at an angle of 30° and after collision reflects at the same angle with the same speed. The change in momentum of ball in MKS unit is?
a) 20
b) 30
c) 15
d) 45

I want the steps too, please don't randomly choose one of the options. ​

Answer 1

Answer:

the ans is 30

Explanation:

as the hits the wall

$2mv \sin(theta)$

is the change in linear momentum