The 500-lb beam is supported at A and B when it is subjected to a force of 1000 lb as shown. If the pin support at A suddenly fails, determine the beams initial angular acceleration and the force of the roller support on the beam. For the calculation, assume that the beam is a slender rod so that its thickness can be neglected.

ENGR 121 B Lecture Notes for 10/17/2016 Spencer Kociba ● Quiz on vector operations ● Truth tables ○ Both variables must...