SaraNextGen.Com

A sphere  moving with speed  and rotating with an angular velocity makes a head-on elastic collision with an identical stationery sphere . There is no friction between the surface of and . Choose the correct alternative(s).Disregard gravity

a)

will stop moving but continue to rotate with an angular velocity

b)

will come to rest and stop rotating

c)

will move with speed  without rotating

d)

will move with speed and rotate with an angular velocity



Question ID - 100705 | SaraNextGen Top Answer

A sphere  moving with speed  and rotating with an angular velocity makes a head-on elastic collision with an identical stationery sphere . There is no friction between the surface of and . Choose the correct alternative(s).Disregard gravity

a)

will stop moving but continue to rotate with an angular velocity

b)

will come to rest and stop rotating

c)

will move with speed  without rotating

d)

will move with speed and rotate with an angular velocity

1 Answer
127 votes
Answer Key / Explanation : (a,c) -

(a,c)

There will be exchange of linear velocities only. However, the two spheres cannot exert torque on each others, as their surfaces are frictionless and the angular velocities of the spheres do not change

127 votes


127