An 80-N uniform plank leans against a frictionless wall as shown.The torque (about point P)applied to the plank by the wall is:
A)40 N.m
B)60 N.m
C)120 N.m
D)160 N.m
E)240 N.m

Question

An 80-N uniform plank leans against a frictionless wall as shown.The torque (about point P)applied to the plank by the wall is: 
A)40 N.m 
B)60 N.m 
C)120 N.m 
D)160 N.m 
E)240 N.m

Quizplus · Accepted Answer

The Answer of An 80-N uniform plank leans against a frictionless wall as shown.The torque (about point P)applied to the plank by the wall is: 
A)40 N.m 
B)60 N.m 
C)120 N.m 
D)160 N.m 
E)240 N.m

An 80-N Uniform Plank Leans Against a Frictionless Wall as Shown.The