When $F =2 N$, the frictional force between 5 $kg$ block and ground is $..........\,N$
$0$
$2$
$8$
$10$
$f_{1 \max }=10\,N$
$f_{2 \max }=45\,N$
The pulleys in the diagram are all smooth and light. The acceleration of $A$ is $a$ upwards and the acceleration of $C$ is $f$ downwards. The acceleration of $B$ is
A body of mass $8\,kg$ is hanging another body of mass $12\,kg$. The combination is being pulled by a string $T _2$ will be respectively: (use $g =9.8\,m / s ^2$ )
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