A uniform rod of length L and mass m is supported as shown with b = 0.2 L when the cable attached to end B suddenly breaks. Determine at this instant (a) The acceleration of end B, (b) The reaction at...

A uniform rod of length L and mass m is supported as shown with b = 0.2 L when the cable attached to end B suddenly breaks. Determine at this instant (a) The acceleration of end B, (b) The reaction at the pinsupport.