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March 29, 2015

Homework Help: Help me please with physics

Posted by Nicole on Friday, October 15, 2010 at 7:13pm.

A 25kg mass is on a level, rough surface where the force of friction is a constant 15 N. A horizontal applied force of 65 N acts on the mass. The mass is initially at rest.

a) what speed does the mass have after 4.0 seconds?

b) what speed does the mass have after being moved 2.0m?

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