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Q. A horizontal force $F=2 \,N$ is applied on the system shown in the figure. All surfaces are smooth. All pulleys and strings are ideal. Mass of blocks $A$ and $B$ each is $1 \,kg$. What is the acceleration (in $m / s ^{2}$ ) of $B$ with respect to $A$ ?Physics Question Image

Laws of Motion

Solution:

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$\therefore a=0$
$\Rightarrow$ Relative acceleration $=2 \,m / s ^{2}$