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

Help with finding Tension

  • #1

Homework Statement


A 0.22-kg ball on a stick is whirled on a vertical circle at a constant speed. When the ball is at the three o'clock position, the stick's tension is 19 N.


Homework Equations


mass m = 0.22 kg
tension in 3'o clock position T = 19 N
tension in 12 'o clock position T ' = T-3mg
= 19 - 6.468
= 12.532 N
tension in 6 'o clock position T " = T + 3mg
= 19 + 6.468
= 25.468 N



The Attempt at a Solution



Can someone please help me understand where the [6.468] came from?
 

Answers and Replies

  • #2
110
0

Homework Statement


A 0.22-kg ball on a stick is whirled on a vertical circle at a constant speed. When the ball is at the three o'clock position, the stick's tension is 19 N.


Homework Equations


mass m = 0.22 kg
tension in 3'o clock position T = 19 N
tension in 12 'o clock position T ' = T-3mg
= 19 - 6.468
= 12.532 N
tension in 6 'o clock position T " = T + 3mg
= 19 + 6.468
= 25.468 N



The Attempt at a Solution



Can someone please help me understand where the [6.468] came from?

You said yourself T' = T-3mg

mg = 2.156 so 3mg is 3 times that which gives you 6.468
 

Related Threads on Help with finding Tension

  • Last Post
Replies
9
Views
1K
Replies
1
Views
3K
Replies
2
Views
2K
Replies
4
Views
2K
Replies
5
Views
2K
  • Last Post
Replies
6
Views
3K
  • Last Post
Replies
1
Views
8K
  • Last Post
Replies
8
Views
2K
Replies
5
Views
683
Top