A force of 78 grams acts at the point (2, 3, 5), the direction ratios – McqOptions

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1.	A force of 78 grams acts at the point (2, 3, 5), the direction ratios of the line of action being 2, 2, 1. The magnitude of its moment about the line joining the origin to the point (12, 3, 4) is:
A.	24
B.	136
C.	36
D.	0
Answer» C. 36

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