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A smooth sphere A is moving on a frictionless horizontal plane with angular speed ω and the centre of mass velocity u. It collides elastically and head on with an identical sphere B at rest. Neglect friction everywhere. After the collision, their angular speeds are ω(A) and ω(B) respectively. Then?
  • a)
    ωA is lesser than ωB
  • b)
    ωA = ωB
  • c)
    ωA = ω
  • d)
    ωB = ω
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
A smooth sphere A is moving on a frictionless horizontal plane with an...
Only their linear velocities are exchanged. The two spheres cannot exert torques on each other, as their surfaces are frictionless, and so that angular velocities of the sphere do not change.
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A smooth sphere A is moving on a frictionless horizontal plane with angular speed ω and the centre of mass velocity u. It collides elastically and head on with an identical sphere B at rest. Neglect friction everywhere. After the collision, their angular speeds are ω(A) and ω(B) respectively. Then?a)ωA is lesser than ωBb)ωA = ωBc)ωA = ωd)ωB = ωCorrect answer is option 'C'. Can you explain this answer?
Question Description
A smooth sphere A is moving on a frictionless horizontal plane with angular speed ω and the centre of mass velocity u. It collides elastically and head on with an identical sphere B at rest. Neglect friction everywhere. After the collision, their angular speeds are ω(A) and ω(B) respectively. Then?a)ωA is lesser than ωBb)ωA = ωBc)ωA = ωd)ωB = ωCorrect answer is option 'C'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about A smooth sphere A is moving on a frictionless horizontal plane with angular speed ω and the centre of mass velocity u. It collides elastically and head on with an identical sphere B at rest. Neglect friction everywhere. After the collision, their angular speeds are ω(A) and ω(B) respectively. Then?a)ωA is lesser than ωBb)ωA = ωBc)ωA = ωd)ωB = ωCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A smooth sphere A is moving on a frictionless horizontal plane with angular speed ω and the centre of mass velocity u. It collides elastically and head on with an identical sphere B at rest. Neglect friction everywhere. After the collision, their angular speeds are ω(A) and ω(B) respectively. Then?a)ωA is lesser than ωBb)ωA = ωBc)ωA = ωd)ωB = ωCorrect answer is option 'C'. Can you explain this answer?.
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