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A hockey puck of mass m traveling along the x axis at 4.5 m/s hits another...

A hockey puck of mass m traveling along the x axis at 4.5 m/s hits another identical hockey puck at rest. If after the collision the second puck travels at a speed of 3.5 m/s at an angle of 30° above the x axis, what is the final velocity of the first puck?

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Answer #1

Apply law of conservation of momentum is tx direction mu tm mv cos8+ cos 30° 0cose cos 30° 4.5 m/s +0-(3.5 m/s) cos 30 Solvin

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