A rigid beam with one end at the origin has a force, F = 7.1 i +-1.8 j +7.8 k N acting on it at a position r = 2.4 i +5.3 j +8.4 k m from its fixed pivot point at the origin, Determine the magnitude of the torque exerted by this force. a.
81.38 Nm

b.
4579.39 Nm

c.
109.33 Nm

d.
None of the other answers is correct

e.
0.00 Nm

Explanation:

A rigid beam with one end at the origin has a force, F = 7.1 i +-1.8 j +7.8 k N acting on it at a position r = 2.4 i +5.3 j +8.4 k m from its fixed pivot point at the origin, Determine the magnitude of the torque exerted by this force.

a.

81.38 Nm

b.

4579.39 Nm

c.

109.33 Nm

d.

None of the other answers is correct

e.

0.00 Nm

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