I need someone to double check it, because this was an exam given by my teacher and I am trying to solve it, but I do not have any results so I would like to know if I did it correctly or not. Thank you!(adsbygoogle = window.adsbygoogle || []).push({});

1. The problem statement, all variables and given/known data

Two blocks m1 = 50kg and m2= 100kg are attached to a rope as shown in figure. Pulley is massless. The angle of the inclined plane is pi/6 and the coefficient of kinetic friction is 0.250. Find the variation of kinetic energy if the body m1 goes up 20meters.

2. Relevant equations

F = ma

kinetic energy = 1/2 mv^2

kinetic friction = mu*normal force.

3. The attempt at a solution

See attachment

or: http://i40.tinypic.com/6hklm8.jpg for better quality.

Thanks for any help.

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# Inclined plane with friction, find kinetic energy.

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