In the figure, blocks A and B of masses 2m an | vedclass

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Question

When the system is in equilibrium, then the spring force is $3 mg$. When the string is cut, then net force on block $A$

$=3 m g-2 m g=m g$

Hence

Vedclass · Accepted Answer

$\frac{g}{2}, g$

Vedclass · Answer

When the system is in equilibrium, then the spring force is $3 mg$. When the string is cut, then net force on block $A$

$=3 m g-2 m g=m g$

Hence, acceleration of block $A$ at that instant

$a=\frac{	ext { force on block } A}{	ext { mass of block } A}=\frac{m g}{2 m}=\frac{g}{2}$

When string is cut, then block $B$ falls freely with an acceleration equal to $g$.

In the figure, blocks $A$ and $B$ of masses $2m$ and $m$ are connected with a string and system is hanged vertically with the help of a spring. Spring has negligible mass. Find out magnitude of acceleration of masses $2m$ and $m$ just after the instant when the string is cut

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