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In the figure shown, a ring  is initially rolling without sliding with a velocity  on the horizontal surface of the body  (of same mass as . All surfaces are smooth. has no initial velocity. What will be the maximum height reached by on ?

a)

b)

c)

d)



Question ID - 100523 | SaraNextGen Top Answer

In the figure shown, a ring  is initially rolling without sliding with a velocity  on the horizontal surface of the body  (of same mass as . All surfaces are smooth. has no initial velocity. What will be the maximum height reached by on ?

a)

b)

c)

d)

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

(b)

When the ring is at the maximum height, the wedge and the ring have the same horizontal component of velocity. As all the surface are smooth, in the absence of friction between the ring and the wedge surface, angular velocity of the ring remains constant

For conservation of mechanical energy, we get

Where  is final common velocity;

from conservation of momentum) and

127 votes


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