A force of 78gm acts at the point 2 3 5 the direction, Ask an Expert

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Q. An 845 N sled is pulled the distance of 195m. The task requires 1.20 x10^4 J of work and is done by pulling on a rope with a force of 125 N. At what angle is the rope held?

Q. A force of 78gm acts at the point (2, 3, 5) the direction cosines of its line of action being as 2:2:1 find the magnitude of its moment about the joining the origin to the point (2, 3, 4)?

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