For the situation shown in Figure 9.19, calculate: (a) F R , the force exerted by the
Question:
For the situation shown in Figure 9.19, calculate:
(a) FR, the force exerted by the right hand, and
(b) FL, the force exerted by the left hand. The hands are 0.900 m apart, and the cg of the pole is 0.600 m from the left hand.
Strategy
Figure 9.19 includes a free body diagram for the pole, the system of interest. There is not enough information to use the first condition for equilibrium (net F = 0), since two of the three forces are unknown and the hand forces cannot be assumed to be equal in this case. There is enough information to use the second condition for equilibrium (net π = 0) if the pivot point is chosen to be at either hand, thereby making the torque from that hand zero. We choose to locate the pivot at the left hand in this part of the problem, to eliminate the torque from the left hand.
Step by Step Answer:
Solution for a There are now only two nonzero torques those from the gravitational ...View the full answer
