Tuesday
September 23, 2014

Homework Help: Physics

Posted by Hannah on Wednesday, September 21, 2011 at 11:16pm.

A person pushes a 23.4-kg shopping cart at a constant velocity for a distance of 31.1 m on a flat horizontal surface. She pushes in a direction 34.8 below the horizontal. A 38.5-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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