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Standard XII

Physics

Acceleration in 2D

A cord is wra...

Question

A cord is wrapped on a pulley (disk) of mass $M$ and radius $R$ as shown in figure. To one end of the cord, a block of mass $M$ is connected as shown and to other end in (a) a force of $2 M g$ and in (b) a block of mass $2 M$ . Let angular acceleration of the disk in $A$ and $B$ is $α_{A}$ and $α_{B}$ , respectively, then :(cord is not slipping on the pulley)

α_{A} = α_{B}

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α_{A} > α_{B}

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α_{A} < α_{B}

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None of these

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Solution

The correct option is B $α_{A} > α_{B}$

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The correct option is B αA>αB

The correct option is B $α_{A} > α_{B}$