Kinetic Friction with Blocks Need Help.

AI Thread Summary
The discussion focuses on solving a physics problem involving two blocks with a coefficient of kinetic friction of μk=0.20 and equal masses of 2.2 kg. Participants are asked to determine the acceleration of the blocks when one moves down at an angle of θ=28 degrees, as well as the minimum value of μk required to prevent acceleration. The forces acting on the blocks include normal force, weight, and tension, which are essential for setting up the equations of motion. There is a request for guidance on creating free body diagrams (FBDs) to visualize these forces and aid in solving the problem. Overall, the thread highlights confusion about starting the calculations and the need for clarification on the forces involved.
Larin
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Homework Statement


Suppose the coefficient of kinetic friction between m1 and the plane in the figure is μk=0.20, and that m1=m2=2.2kg.
a) As moves down, determine the magnitude of the acceleration of m1 and m2 given θ=28o.
GIANCOLI.ch04.p63and64.jpg


b) What smallest value of μk will keep this system from accelerating?

Homework Equations


F=ma


The Attempt at a Solution


I am not sure even where to begin.
 
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So what are the forces acting on both masses? Can you draw FBD's to help you get some equations to solve for a?
 
The normal force, the force of the weight, and the force of tension are acting on both blocks.
 
I am still really confused though...
 

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