Figure 6.2 Force diagram with masses at each end of a pivoted bar of length (L+1) m.
-A person of mass 70 kg stands 0.5 m from one end of a 2 m long uniform plank (of negligible mass) that is being held in equilibrium by two vertical ropes attached to the ends of the plank. What is the tension in the rope closer to the person?
A)23 N
B)47 N
C)229 N
D)457 N

Question

Figure 6.2  Force diagram with masses at each end of a pivoted bar of length (L+1) m.
-A person of mass 70 kg stands 0.5 m from one end of a 2 m long uniform plank (of negligible mass) that is being held in equilibrium by two vertical ropes attached to the ends of the plank. What is the tension in the rope closer to the person?
A)23 N 
B)47 N 
C)229 N 
D)457 N

Quizplus · Accepted Answer

The Answer is D

Figure 62 Force Diagram with Masses at Each End of of a Pivoted