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July 28, 2015

Homework Help: physics

Posted by johhnny on Monday, July 8, 2013 at 1:26pm.

A person pushes a 24.7-kg shopping cart at a constant velocity for a distance of 34.0 m on a flat horizontal surface. She pushes in a direction 23.2 below the horizontal. A 48.5-N frictional force opposes the motion of the cart. (a) What is the magnitude of the force that the shopper exerts? Determine the work done by (b) the pushing force, (c) the frictional force, and (d) the gravitational force.

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