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A thin ring of mass 2 kg and radius 0.5 m is rolling without on a horizontal plane with velocity 1 m/s. A small ball of mass 0.1 kg, moving with velocity 20 m/s in the opposite direction hits the ring at a height of 0.75 m and goes vertically up with velocity 10 m/ s. Immediately after the collision
  • a)
    the ring has pure rotation about its stationary CM.
  • b)
    the ring comes to a complete stop.
  • c)
    friction between the ring and the ground is to the left.
  • d)
    there is no friction between the ring and the ground.
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
A thin ring of mass 2 kg and radius 0.5 m is rolling without on a hori...
The frictional force between   
the ring and the ball is impulsive. The angular impulse created by this force tends to decrease the angular speed of the ring about O.
After the collision the angular speed decreases but the ring remains rotating in the anticlock wise direction.
Therefore the friction between the ring and the ground (at the point of contact) is towards left.
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A thin ring of mass 2 kg and radius 0.5 m is rolling without on a horizontal plane with velocity 1 m/s. A small ball of mass 0.1 kg, moving with velocity 20 m/s in the opposite direction hits the ring at a height of 0.75 m and goes vertically up with velocity 10 m/ s. Immediately after the collisiona)the ring has pure rotation about its stationary CM.b)the ring comes to a complete stop.c)friction between the ring and the ground is to the left.d)there is no friction between the ring and the ground.Correct answer is option 'C'. Can you explain this answer?
Question Description
A thin ring of mass 2 kg and radius 0.5 m is rolling without on a horizontal plane with velocity 1 m/s. A small ball of mass 0.1 kg, moving with velocity 20 m/s in the opposite direction hits the ring at a height of 0.75 m and goes vertically up with velocity 10 m/ s. Immediately after the collisiona)the ring has pure rotation about its stationary CM.b)the ring comes to a complete stop.c)friction between the ring and the ground is to the left.d)there is no friction between the ring and the ground.Correct answer is option 'C'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about A thin ring of mass 2 kg and radius 0.5 m is rolling without on a horizontal plane with velocity 1 m/s. A small ball of mass 0.1 kg, moving with velocity 20 m/s in the opposite direction hits the ring at a height of 0.75 m and goes vertically up with velocity 10 m/ s. Immediately after the collisiona)the ring has pure rotation about its stationary CM.b)the ring comes to a complete stop.c)friction between the ring and the ground is to the left.d)there is no friction between the ring and the ground.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A thin ring of mass 2 kg and radius 0.5 m is rolling without on a horizontal plane with velocity 1 m/s. A small ball of mass 0.1 kg, moving with velocity 20 m/s in the opposite direction hits the ring at a height of 0.75 m and goes vertically up with velocity 10 m/ s. Immediately after the collisiona)the ring has pure rotation about its stationary CM.b)the ring comes to a complete stop.c)friction between the ring and the ground is to the left.d)there is no friction between the ring and the ground.Correct answer is option 'C'. Can you explain this answer?.
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