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Kinetic Friction with Blocks Need Help.

  • Thread starter Larin
  • Start date
  • #1
7
0

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.

Homework Statement





Homework Equations





The Attempt at a Solution

 

Answers and Replies

  • #2
656
2
So what are the forces acting on both masses? Can you draw FBD's to help you get some equations to solve for a?
 
  • #3
7
0
The normal force, the force of the weight, and the force of tension are acting on both blocks.
 
  • #4
7
0
I am still really confused though.....
 

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