Homework Help: physics

Posted by lau on Friday, June 4, 2010 at 1:06pm.

In most situations, frictional forces tend to reduce the kinetic energy of an object. However, frictional forces can sometimes increase an object's kinetic energy. Describe a few situations in which friction causes an increase in kinetic energy.

physics - Damon, Friday, June 4, 2010 at 8:22pm
If you use a belt to turn a pulley.

If you set your suitcase (or you) on a conveyer belt.

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