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

a)

b)

c)

d)



Question ID - 100506 | SaraNextGen Top Answer

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

a)

b)

c)

d)

1 Answer
127 votes
Answer Key / Explanation : (b) -

(b)

 m/s

Let velocity of  after collision be  and that of  be Then

 m/s

 m/s

127 votes


127