The force has u magnitude of 800 N and coordinate direction angles of alpha = 60

Question

The force has u magnitude of 800 N and coordinate direction angles of alpha = 60 degree, beta = 120 degree, gamma = 45 degree. For the following, assume that a positive moment is in the positive coordinate direction (e.g. positive x direction). Express the force as a Cartesian vector. Use scalar techniques to calculate the moment of F about the y-axis. Use vector techniques to calculate the moment of F about point O. Use vector techniques to calculate the moment of F about the axis from point O to point A.

Explanation / Answer

Force in vector form.

Moment about the point O.

Moment about the point O for force at A.

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