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October 26, 2014

Homework Help: physics

Posted by jessie on Thursday, February 10, 2011 at 5:43pm.

A 4.5 kg block located on a horizontal frictionless floor is pulled by a cord that exerts a force F=13.50 N at an angle theta=30.0 degrees above the horizontal. What is the speed of the block 5.50 seconds after it starts moving?

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