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Three forces act on an object. The moment of the force F1 about a point P is 5 N·m counter clockwise; the moment of the force F2 about P is 8 N·m clockwise; the moment of the force F3 about P is 7 N·m clockwise.
The net moment about point P is 10 N*m counter clockwise.
a) True
b) False

Respuesta :

masifakrami

Answer:

b) False

Explanation:

To determine the net moment about point P, we need to consider the moments produced by each force individually and then find their sum.

Given:

- Moment of force F1 about point P: 5 N*m counter clockwise

- Moment of force F2 about point P: 8 N*m clockwise

- Moment of force F3 about point P: 7 N*m clockwise

To find the net moment, we subtract the clockwise moments from the counter-clockwise moments:

Net moment = (5 N*m counter clockwise) - (8 N*m clockwise) - (7 N*m clockwise)

           = 5 N*m - 8 N*m - 7 N*m

           = -10 N*m

The net moment about point P is -10 N*m, not 10 N*m counterclockwise. Therefore, the statement "The net moment about point P is 10 N*m counterclockwise" is:

b) False

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