M4 chapter 2 help!!

#1
Hi, I'm stuck on a question from M4 chapter 2, ex. 2A, question 11:

A smooth ball, mass 2kg, is moving in the xy plane, and collides with a smooth vertical wall, which contains the line y=x. Velocity before impact: (4i + 2j)ms-1. Coefficient of restitution in 1/3.

find the velocity after the impact.

I'm completely stuck, is anyone able to help me??
0
7 years ago
#2
(Original post by LyingWatch)
Hi, I'm stuck on a question from M4 chapter 2, ex. 2A, question 11:

A smooth ball, mass 2kg, is moving in the xy plane, and collides with a smooth vertical wall, which contains the line y=x. Velocity before impact: (4i + 2j)ms-1. Coefficient of restitution in 1/3.

find the velocity after the impact.

I'm completely stuck, is anyone able to help me??
Use conservation of momentum parallel to the plane and the law of restitution perpendicular to the plane.
0
#3
ah ok, thanks.
0
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