Questions
A vertical rectangular door with its centre of gravity at O (see figure) is fixed on two hinges A and B along one vertical length side of the door. The entire weights of the door is supported by the hinge A. Then the free body force diagram for the door (the arrows indicate the direction of the forces) is :
detailed solution
Correct option is B
Because of the W door try to rotate clockwise to appose it if at hinges produces anti-clockwise torqueTalk to our academic expert!
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Forces are applied on a wheel of radius 20 cm as shown in the figure. The torque produced by the forces 8 N at A, 8 N at E, 6 N at C and 9 N at D at angles indicated is
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