An object of mass 2 , kg is placed at rest in | vedclass

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(A) The object is placed at rest in the frame $S_1$.By definition,if an object is at rest within a specific frame of reference,its acceleration with r

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$0 \, N$

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(A) The object is placed at rest in the frame $S_1$.By definition,if an object is at rest within a specific frame of reference,its acceleration with respect to that frame is zero $(a_{rel} = 0)$.According to Newton's Second Law of Motion,the net force acting on an object is given by $F_{net} = m 	imes a$.Since the object is at rest in frame $S_1$,the acceleration of the object with respect to $S_1$ is $0 \, m/s^2$.Therefore,the net force acting on the object with respect to the $S_1$ frame is $F_{net} = 2 \, kg 	imes 0 \, m/s^2 = 0 \, N$.

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