Question

A b and c are the forces of magnitude 4 newton 6 Newton and 8 Newton respectively acting in the plane of paper as shown find the magnitude and the direction of resultant talk about the point o​

Answer 1

Answer:

Moment is defined as rXF Here r is nothing but perpendicular distance from the force to that point O. Given the distances as 0.9 m, 0.8m, 0.6m for A,B,C respectively from point O. All has same magnitude of force that is 4 N. Hence

For A

moment=0.9×4=3.6N−m

For B

moment=0.8×4=3.2N−m

For C

moment=0.6×4=2.4N−m.

Here A and B as both are in the clockwise direction where C gets subtracted as it is in an anti-clockwise direction. Hence resultant torque is

3.6+3.2−2.4=4.4N−m.

Hence 4.4N−m is the resultant torque.

Explanation:

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