An object of m kg with speed of v m/s strikes a wall at an angle q and – McqOptions

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1.	An object of m kg with speed of v m/s strikes a wall at an angle q and rebounds at the same speed and same angle. The magnitude of the change in momentum of the object will be
A.	\[2m\,v\,\cos \theta \]
B.	\[2\,m\,v\,\sin \theta \]
C.	0
D.	\[2\,m\,v\]
Answer» B. \[2\,m\,v\,\sin \theta \]

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