Physics

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A man drags a 71.5-kg crate across the floor at a constant velocity by pulling on a strap attached to the bottom of the crate. The crate is tilted 27.0° above the horizontal, and the strap is inclined 66.5° above the horizontal. The center of gravity of the crate coincides with its geometrical center. The dimensions of the crate are .9 m x .4 m. Find the magnitude of the tension in the strap.

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