Solve Prob. 16.138 when θ =90°.
Prob. 16.138 In the engine system shown =rod and is attached to the 1.8-kg piston P. During a test of the system, crank AB is made to rotate with a constant angular velocity of 600 rpm clockwise with no force applied to the face of the piston. Determine the forces exerted on the connecting rod at B and D θ= 180°.