Chapter 11, Problem 11.11P

Figure P11-5a shows a fourbar linkage and its dimensions in meters. The steel crank, coupler, and rocker have uniform cross sections of 50 mm wide by 25 mm thick. In the instantaneous position shown, the crank $O_{2}A$ has $\omega =15\text{rad/sec}$ and $\alpha =-10{\text{rad/sec}}^2$. There is a vertical force at P of $F=500\text{N}$. Find all pin forces and the torque needed to drive the crank at this instant.

Problems 11-11 to 11-12