• Support PF! Buy your school textbooks, materials and every day products Here!

What is the angle?

  • #1

Homework Statement



What would angle theta have to be (in terms of m1,m2,theta,and g) for block 1 to slide up the incline with a constant velocity?https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-xpa1/v/t34.0-12/10822629_888792511161232_525549482_n.jpg?oh=d4562de825a1f9415f4e8af0492bf6c5&oe=548EDA23&__gda__=1418719036_0909ad5a8f6240bb4b7f7ad07f541e09
2. Relevant equation
Law of sines


The Attempt at a Solution


I did vector addition for mass 1, I then did law of sines to figure out theta, but I always have like 2 thetas so I need a little help on this ( This is my first year in AP physics so sorry if this seem like a stupid question). [/B]
 

Answers and Replies

  • #2
Bystander
Science Advisor
Homework Helper
Gold Member
5,173
1,177
The problem statement as pictured is incomplete. Please check your notes for missing details.
 
  • #3
7
1

Homework Statement



What would angle theta have to be (in terms of m1,m2,theta,and g) for block 1 to slide up the incline with a constant velocity?https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-xpa1/v/t34.0-12/10822629_888792511161232_525549482_n.jpg?oh=d4562de825a1f9415f4e8af0492bf6c5&oe=548EDA23&__gda__=1418719036_0909ad5a8f6240bb4b7f7ad07f541e09
2. Relevant equation
Law of sines


The Attempt at a Solution


I did vector addition for mass 1, I then did law of sines to figure out theta, but I always have like 2 thetas so I need a little help on this ( This is my first year in AP physics so sorry if this seem like a stupid question). [/B]
Are u sure questions complete ?otherwise we can't find theta in just m1,m2 and g alone. We need one more angle (may be phi) along with the above terms.if that's not available then there must be some other clue in the question to relate two angle. Please check .
 
  • #4
haruspex
Science Advisor
Homework Helper
Insights Author
Gold Member
32,741
5,034
What would angle theta have to be (in terms of m1,m2,theta
Presumably one of those two references to theta should be a reference to the other angle in the picture (but its name is illegible).
 
  • #5
3
0
From you point of view reconsider sin. What is it without triangle?
 

Related Threads on What is the angle?

  • Last Post
Replies
5
Views
1K
  • Last Post
Replies
1
Views
7K
  • Last Post
Replies
2
Views
537
  • Last Post
Replies
5
Views
583
  • Last Post
Replies
1
Views
5K
  • Last Post
Replies
4
Views
9K
  • Last Post
Replies
4
Views
5K
Replies
6
Views
1K
Replies
2
Views
3K
Replies
1
Views
8K
Top