A uniform bar of length L = 1 m is moving in a zero gravity, zero atmosphere field at a uniform speed of 10 m/s as shown by the arrows. Initially parallel to the X direction, the bar is not rotating when it strikes a fixed object at the left end shown as point P. When it strikes the object at P, assume that the collision is fully plastic at the contact point P (no bar rebound or relative sliding) so that motion of the bar immediately after impact is a pure rotation about the object (model P as a pinned joint). 1. What is the angular velocity of the bar immediately (small time period) after impact? 2. In what direction is the impulsive force applied to the fixed object during the early impact? 3. What are the kinetic energies of the bar both before and after impact if the mass of the bar is 1 kg? 4. Are the kinetic energies before and after impact different? If so, explain the difference? P X