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Figure-2.52 shows a box of mass m is pla...

Figure-2.52 shows a box of mass m is placed on a wedge of mass M on a smooth surface. How much force F is required to be applied on M so that during motion m remains at rest on its surface

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Figure-2.54 shows a block of mass m is placed on an inclined wedge of mass M If the system is released from rest find the acceleration of m and M.

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Knowledge Check

  • The mass m is placed on a body of mass M. There is no friction. The force F is applied on M on it moves with acceleration a. Then, the force on the top body is

    A
    F
    B
    ma
    C
    F - ma
    D
    None of these

  • In fig. mass m is being pulled on the incline of a wedge of mass M. All the surfaces are smooth. Find the acceleration of the wedge.

    A
    `a=(F(1-cos theta)mg 2sin theta cos theta)/(M+2m sin^(2)theta)`
    B
    `a=(F(1+cos theta)+mg sin theta cos theta)/(M+m sin^(2)theta)`
    C
    `a=(F(1-cos theta)-mg sin theta cos theta)/(M+m sin^(2)theta)`
    D
    `a=(F(1+cos theta)-mg sin theta cos theta)/(M-m sin^(2)theta)`

  • A body of mass 2 kg is moving with a velocity 8m//s on a smooth surface. If it is to be brought to rest in 4 seconds, then the force to be applied is

    A
    8 N
    B
    4 N
    C
    2 N
    D
    1 N

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    In the figure2.217 all the surfaces are frictionless. What force F is required to be applied on the bigger block so that m_(2) and m_(3) will remain at rest on it.

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    In the Fig. shown, mass 'm' is being pulled on the incline of a wedge of mass M. All the surface are smooth. Find the acceleration of the wedge.

    A block of mass m is placed on a wedge of mass M and a force F is acting on its as shown . If all surfaces are smooth , find the force F such that, there is no relative motion between m and M.

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