Asked by Paul

Two balls of equal mass undergo a collision. Ball one is initially travelling horizontally with a speed of 10 m/s, ball two is initially at rest. After the collision, ball one moves away with a velocity of 4.7 m/s at an angle of 60 degrees from it's original path and ball two moves at an unknown angle. Determine the magnitude and direction of velocity of ball two after the collision.

Answers

Answered by Damon
before collision
x momentum = 10m
y momentum = 0

after collision
x momentum = 10m = 4.7cos 60 m + Vx m

y momentum = 0 = 4.7sin60m + Vy m

then
v = sqrt(Vx^2+Vy^2)
tan A = Vy/Vx
note A is in quadrant IV, below x axis if ball one went northeast
Answered by Anonymous
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