2 masses connected by a pulley

  • Thread starter sheri1987
  • Start date
  • #1
48
0

Homework Statement



Mass m1=28.1 kg is on a horizontal surface, connected to mass m2= 6.70 kg by a light string as shown. The pulley has negligible mass and no friction. A force of 231.3 N acts on m1 at an angle of 29.5o.



Homework Equations




I can't seem to get the correct answer for this one.
I get this equation for the horizontal forces on m1:

m1a = Fcos(theta) -T -ukm1g +ukFsin(theta)

And this one for the vertical forces on m2:

m2a = T -m2g

I can combine these equations and solve for a, but that
doesn't seem to be working out for me. Any suggestions?


The Attempt at a Solution



I plugged in all of the numbers, but it does not seem to be working out
 

Answers and Replies

  • #2
learningphysics
Homework Helper
4,099
6
Seems right to me. What is the coefficient of friction? What number do you get for a?
 
  • #3
4
0
you posted this on lon capa too.. how did you get T ??
 

Related Threads on 2 masses connected by a pulley

  • Last Post
Replies
1
Views
4K
  • Last Post
Replies
1
Views
3K
Replies
0
Views
3K
  • Last Post
Replies
2
Views
6K
  • Last Post
Replies
1
Views
10K
Replies
2
Views
4K
Replies
11
Views
21K
Replies
9
Views
12K
  • Last Post
Replies
4
Views
5K
Top