A 0.30-kg puck, initially at rest on a frictionless horizontal surface, is struck by a 0.20-kg...

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Physics

A 0.30-kg puck, initially at rest on a frictionless horizontalsurface, is struck by a 0.20-kg puck that is initially moving alongthe x-axis with a velocity of 8.6 m/s. After thecollision, the 0.20-kg puck has a speed of 5.2 m/s at an angle ofθ = 53° to the positive x-axis.

(a) Determine the velocity of the 0.30-kg puck after thecollision.


(b) Find the fraction of kinetic energy lost in the collision.

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