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(Solved): Two hockey pucks move towards each other on ice and collide. Puck A is 400 grams and Puck B is 300 g ...



Two hockey pucks move towards each other on ice and collide. Puck A is 400 grams and Puck B is 300 grams. The “before” and “after” pictures from an overhead view are shown below. Assume that in the “before” picture the pucks’ velocities both lie along the x-direction, and that the dashed lines in the “after” picture are parallel to the x-axis

BEFORE
A
AFTER
VA=1.5 m/s V?=0.5 m/s
B
VA=1.0 m/s
30?
B
A
0=?
VB= ?

a) What is the x-component and y-component of the momentum of puck A after the collision? (the next part will ask about puck B, here I’m just asking about puck A’s momentum.

b) How fast is puck B going after the collision (I’m asking for velocity, not momentum) and what is the angle ? as pictured?

 

BEFORE A AFTER VA=1.5 m/s V?=0.5 m/s B VA=1.0 m/s 30? B A 0=? VB= ?


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