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If two balls, each of mass 0 .06 kg, moving in opposite directions with speed a m m/s, collide and rebound with the same speed, then the impulse imparted to each ball due to other is
detailed solution
Correct option is A
The balls exchange velocity on collision. Initial momentum of each ball before collision =mv=0⋅06×4=0⋅24kg⋅m/sFinal momentum of each ball after collision =m(−v)=0⋅06×(−4)=−0⋅24kg−m/s .'. change in momentum = Initial momentum - Final momentum=0⋅24−(−0⋅24)=0⋅48kg−m/sTalk to our academic expert!
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A steel ball is released from a height of 27 m onto a fixed horizontal steel plate. On bouncing the ball rises to a height of 3 m. Then co-efficient of restitution is
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