Work, Energy and Power

Question: The bob of a simple pendulum (mass m and length l) dropped from a horizontal position strikes a block of the same mass elastically placed on a horizontal frictionless table. The K.E. of the block will be



1) 2 mgl
2) mgl/2
3) mgl
4) 0
Solution: Explanation: No Explanation
WEP Conservation of Energy and Momentum

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