7.5 Collisons In Two Dimensions

Question 1

How do you calculate momentum of 2 different balls travelling at different directions after a collision with the same ball

Answer 1

A vector triangle

Question 2

State the 2 equations used to resolve momentum in 2 directions

Answer 2

( calling the vertical direction y and the horizontal direction y )

X direction : total initial momentum = total final momentum
m1 x v0 = m1 xv1 x cos theta 1 + m2 xv2 x cos theta 2

Y direction : total initial momentum = total final momentum
0 = m1 x v1 x sin theta 1 + m 2 x v2 x sin theta 2