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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > Consider a hollow sphere of mass M and radius R resting on a smooth surface. A smaller sphere of mass m and radius r is Initialy held at position P within the bigger sphere. If the small sphere is now released, it rolls down through the inner surface of hollow sphere and finally stops at its bottom point Q. Then:

Consider a hollow sphere of mass M and radius R resting on a smooth surface. A smaller sphere of mass m and radius r is Initialy held at position P within the bigger sphere. If the small sphere is now released, it rolls down through the inner surface of hollow sphere and finally stops at its bottom point Q. Then:

A strip of wood mass M and length l is placed on a smooth horizontal surface. An insect of mass m starts from rest at one end of the strip and walks to the other end in time t moving with a constant speed. The speed of the insect as seen from the ground is