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November 22, 2014

Homework Help: Dot Product 1

Posted by Shaila on Monday, August 9, 2010 at 9:17am.

A crate is dragged 3m along a smooth level floor by a 30n force applied at 25deg to the floor. Then it is pulled 4m up a ramp inclined at 20deg to the horizontal, using the same force. Then, the crate is dragged a further 5m along a level platform using the same force. Determine the total work done in moving the crate.

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