With what acceleration 'a' should the box of figure moving up so that the block of mass `M` exerts `a` force `7Mg//4` on the floor of the box?

With what acceleration a should the box of figure descends so that the block of mass M exerts a force Mg/4 on the floor of the box?

With what acceleratin a should the box of figure desecend so that the block of mass M exerts a force Mg/4 on the floor of the box?

What should be the acceleration a of the box shown in figure so that the block of mass m exerts a force (mg)/(4) on the force of the box?

What should be the acceleration a of the box shown in figure so that the block of mass m exerts a force (mg)/(4) on the force of the box?

With what acceleration 'a' should a box descend so that a block of mass M placed in it exerts force Mg/4 on the floor of the box?

With what acceleration 'a' should a box descend so that a block of mass M placed in it exerts force Mg/4 on the floor of the box?

In fig. the block of mass M is at rest on the floor . At what acceleration with which should a boy of mass m climb along the rope of negligible mass so as to lift the block from the floor?

In fig. the block of mass M is at rest on the floor . At what acceleration with which should a boy of mass m climb along the rope of negligible mass so as to lift the block from the floor?