Newton's laws multiple objects contact forces

  • #1

Homework Statement



Three crates are arranged. Their masses are m1=29.8, m2= 15.3, m3= 27.3. The applied force of 910 N is directed horizontally and the coefficient of friction is u= .277

WHAT IS THE MAGNITUDE OF THE CONTACT FORCE BETWEEN M1 and M2?
WHAT IS THE MAGNITUDE OF THE CONTACT FORCE BETWEEN M2 and M3

Homework Equations



?

The Attempt at a Solution



acceleration of the three masses = 9.85
 

Answers and Replies

  • #2
PhanthomJay
Science Advisor
Homework Helper
Gold Member
7,167
507
Your answer for the acceleration of all 3 blocks looks correct. What's the acceleration of each block? Answer that question and then draw free body diagrams of the blocks and use Newton's laws for each block.
 
  • #3
isn't the acceleration the same?
 
  • #4
PhanthomJay
Science Advisor
Homework Helper
Gold Member
7,167
507

Related Threads on Newton's laws multiple objects contact forces

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