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128. A solid cylinder of radius R and mass M, rolls down on inclined plane without slipping and reaches the bottom with a speed v. The speed would be less than v if we use

(a) A cylinder of same mass but of smaller radius

(b) A cylinder of same mass but of larger radius

(c) A cylinder of same radius but of smaller mass

(d) A hollow cylinder of same mass and same radius

Ans. d

(52)

5/5 - (2 votes)

PrevPreviousA body of mass m kg. starts falling from a point 2R above the Earth’s surface. Its kinetic energy when it has fallen to a point ‘R’ above the Earth’s surface [R-Radius of Earth, M-Mass of Earth, G-Gravitational Constant]

Next82. In which case there is maximum extension in the wire, if same force is applied on each wireNext

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