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Two identical balls, each of mass , are tied with a string and kept on a frictionless surface. Initially, the string is slack. They are given velocities  and  in the same direction. Collision between the balls is perfectly elastic

After the first collision, what is the total loss in kinetic energy of the balls?

a)

b)

c)

d)

Zero



Question ID - 101224 | SaraNextGen Top Answer

Two identical balls, each of mass , are tied with a string and kept on a frictionless surface. Initially, the string is slack. They are given velocities  and  in the same direction. Collision between the balls is perfectly elastic

After the first collision, what is the total loss in kinetic energy of the balls?

a)

b)

c)

d)

Zero

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

(d)

Since the collision is elastic, there is no loss in KE

127 votes


127