Y A stick of length L and mass m is initially at rest over a frictionless A horizontal surface (top view is shown). A small puck of the same mass m, sliding with velocity v perpendicular to the stick, hits the stick at some point B at a distance d from its centre O towards one of the ends of 4. the stick. Assuming a totally elastic collision, find the required distance O X d such that after the hit the velocity of point A (the other end of the D stick) will be equal to zero. B NB: The stick is not fixed. Use all the applicable conservation laws. A thin uniform square slab (mass M and side length d) is fixed at the corner and forced to rotate with constant angular velocity w about an 5. axis (call it Z) inclined at an angle a to the plane of the slab. Determine d the components of the torque T required at the fixed corner to keep the slab rotating in this way (select X axis to be in the plane of the slab at M d the initial moment)