Two identical balls, of equal masses A and B, are lying on a smooth surface as shown in figure. Ball A hits ball B (which is at rest) with a velocity v = 16 m/s. What should be the minimum value of coefficient of restitution between A and B so that B just reaches the highest point of inclined plane?

Question

Infinity Learn · Accepted Answer

according to conservation of linear momentum $$mu1+0$$ $$=mv1+mv2$$ here $$v2=2gh=2g5=$$ $$10$$ $$m/s$$ $$u1=v1+10$$ $$16=v1+10$$   ;  $$v1=$$ $$6$$ coefficient of restitution $$e=v2-v1$$ $$u1-u2=10-616=14$$

Two identical balls, of equal masses A and B, are lying on a smooth surface as shown in figure. Ball A hits ball B (which is at rest) with a velocity v = 16 m/s. What should be the minimum value of coefficient of restitution between A and B so that B just reaches the highest point of inclined plane?

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