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Physics 12 Online
OpenStudy (anonymous):

Starting from rest, a 5.0kg block slides 2.50m down an incline of 30.0degrees. the coefficient of kinetic friction between the block and the incline is 0.436. Determine the work done on the block by (a) the force due to gravity, (b) the frictional force, and (c) the normal force. (d) what is the speed of the block down the incline after traveling the 2.50m?

OpenStudy (anonymous):

a)mgh b)0.436mg cos30( s) c)zero d)mgh-0.436mg cos30( s)

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