Question

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Answer 1

Answer:

Correct option is

B

10N m (anti clockwise)

As we have to find the moment of force about O with respect to first force for which the perpendicular distance is 2m. We have a magnitude of force 5N. We know that moment of force given by formula r×F=2×5 N−m.

Hence there is a magnitude of 10N−m moment of force.

If the fingers of the right hand are curled from the direction of r towards the direction of F then the thumb points the direction of torque. Hence it is anti-clockwise in direction with 10N−m.

-2

-2*5+4*3

= -10+12

= 2nm

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