A ball of mass m moves with speed v and strikes a wall having infinite – McqOptions

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1.	A ball of mass m moves with speed v and strikes a wall having infinite mass and it returns with same speed then the work done by the ball on the wall is [BCECE 2004]
A.	Zero
B.	\[mv\ J\]
C.	m/v J
D.	v/mJ
Answer» B. \[mv\ J\]

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