A mass hangs with the help of a string wrapped around a pulley on a frictionless bearing. The pulley has mass and radius . Assuming pulley to be a perfect uniform circular disc, the acceleration of the mass , if the string does not slip on the pulley, is |
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a) |
b) |
c) |
d) |

A mass hangs with the help of a string wrapped around a pulley on a frictionless bearing. The pulley has mass and radius . Assuming pulley to be a perfect uniform circular disc, the acceleration of the mass , if the string does not slip on the pulley, is |
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a) |
b) |
c) |
d) |

1 Answer

127 votes

**(b)**

For the motion of the block

…(i)

For the rotation of the pulley

…(ii)

As string does not slip on the pulley

…(iii)

On solving Eqs. (i), (ii) and (iii)

127 votes

127