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A 0.320 kg puck at rest on a horizontal frictionless surface is struck by a 0.220...

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Physics

A 0.320 kg puck at rest on a horizontal frictionless surface isstruck by a 0.220 kg puck moving in the positive x direction with aspeed of 4.05 m/s. After the collision, the 0.220 kg puck has aspeed of 1.29 m/s at an angle of ? = 60.0° counterclockwise fromthe positive x axis.

(a) Determine the velocity of the 0.320 kg puck after thecollision. Express your answer in vector form.

vf = ___m/s

(b) Find the percent of kinetic energy lost in thecollision.

100*?K/Ki = ___%

Answer & Explanation Solved by verified expert
4.1 Ratings (569 Votes)
m1 032 kg m2 022 kg before collision v1i 0 ms v2i 405 ms initial linear momentum Li m1v1i m2v2i after collision V1f    See Answer
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