A box of mass M is attached to another smaller box of mass m by a lightweight cord and hung over opposite sides of a lightweight pulley. The whole system is
released from rest and accelerates at a rate of a.
Which of the following is a correct expression for the mass m of the smaller box?
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A box of mass M is attached to another smaller box of mass m by a lightweight cord and hung over opposite sides of a lightweight pulley The whole system is rele class=


Answer :

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