A uniform cube of mass m and edge a moves on a horizontal surface along the positive x -axis, with an initial velocity v 0

Question

A uniform cube of mass m and edge a moves on a horizontal surface along the positive x -axis, with an initial velocity v 0, During motion, N > m g, During motion, normal reaction acts on the centre of mass, During motion, the normal reaction shifts towards positive x-axis from the centre of mass, During motion, normal reaction shifts in the direction of the forces of friction

MARKS App · Accepted Answer

In this case, the force of friction has a tendency to rotate the cube in clockwise direction. So normal reaction will shift in forward direction to balance the torque due to force of friction. Hence, (During motion, the normal reaction shifts towards positive x-axis from the centre of mass) is correct.

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