AP EAMCET · PHYSICS · Center of Mass Momentum and Collision
A ball of mass moving horizontally at strikes a vertical wall and rebounds with speed . The magnitude of the change in linear momentum is found to be . The magnitude of is,
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Answer & Solution
Correct Answer
(A)
Step-by-step Solution
Detailed explanation
Linear momentum is a vector quantity. Initial momentum =+m×10 i^. Final momentum =-mv i^ Change in linear momentum =-10m i^-mv i^=-10+vm i^ Therefore, 10+v×0.5=8⇒v=16-10=6 m s-1
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