What is the moment of friction force f(B) at Babout point A?O A) the moment of friction force f(B) at Babout point A is 220 Ib.ftB) the moment of friction force f(B) at Babout point A is zeroO C) the moment of friction force f(B) at Babout point A is 320 Ib.ftD) the moment of friction force f(B) at B about point A is 120 Ib.ftO E) the moment of friction force f(B) at Babout point A is 420 Ib.ft weight of the bar is 100 Ib.3 ftВ13 ft5 ftANormal force exerted on the bar at point A is NANormal force exerted on the bar at point B is NRFriction force exerted on the bar at A isfAFriction force exerted on the bar at B is f.В

Concept used: Frictional force is the opposing force acting in direction opposite to direction of…

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