The free-body diagram below represents a 1500-kg car sitting on a 3000-kg bridge supported at its far ends. The car's position is three quarters of the length L from the left end of the bridge. Identify the one error in the torque equation below:
?
?
?
A.
never produces a torque on the bridge no matter where the axis of rotation is placed.B.
never produces a torque on the bridge no matter where the axis of rotation is placed.C.
cannot produce a torque on the bridge no matter where the axis of rotation is taken since it is at the center of the bridge.D.
from the left end of the bridge is 0, F1L should be 0.E.
from the right end of the bridge is 0, F2L should be 0.Answer: D
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