a ball of 0.5 kg mass moving with a speed of 10 m/s rebounds after striking normally a perfectly elastic wall . find the change in momentum of the ball .

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Solution

Given that:
m=0.5 kg,u=10 m/s,v=-10 m/s
Initial momentum=m u=0.5 x 10=5 kg m/s
Final momentum=mv=0.5 x (-10)=-5 kg m/s
Change in momentum=mv-mu=-5-5=-10 kg m/s

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a ball of 0.5 kg mass moving with a speed of 10 m/s rebounds after striking normally a perfectly elastic wall . find the change in momentum of the ball .

Given that:m=0.5 kg,u=10 m/s,v=-10 m/sInitial momentum=m u=0.5 x 10=5 kg m/sFinal momentum=mv=0.5 x (-10)=-5 kg m/sChange in momentum=mv-mu=-5-5=-10 kg m/s

Given that:
m=0.5 kg,u=10 m/s,v=-10 m/s
Initial momentum=m u=0.5 x 10=5 kg m/s
Final momentum=mv=0.5 x (-10)=-5 kg m/s
Change in momentum=mv-mu=-5-5=-10 kg m/s