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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!
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.
F = ma
kinetic energy = 1/2 mv^2
kinetic friction = mu*normal force.
See attachment
or: http://i40.tinypic.com/6hklm8.jpg for better quality.
Thanks for any help.
Homework Statement
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.
Homework Equations
F = ma
kinetic energy = 1/2 mv^2
kinetic friction = mu*normal force.
The Attempt at a Solution
See attachment
or: http://i40.tinypic.com/6hklm8.jpg for better quality.
Thanks for any help.
Attachments

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