Tensions Problem: 2 ropes and 3 blocks

  • Thread starter Thread starter JANGurTHANG
  • Start date Start date
  • Tags Tags
    Blocks
AI Thread Summary
The discussion focuses on calculating the tension in the cord connecting points B and C, as well as determining how far point A moves in the first 0.250 seconds without reaching the pulley. Key equations utilized include F=ma, where tension is derived from the mass of A and its acceleration. A proposed approach involves setting up equations for tension based on the masses involved and gravitational forces. Participants emphasize the need for clarity in sharing diagrams and files to facilitate problem-solving. The conversation highlights the importance of precise calculations and understanding of forces in tension problems.
JANGurTHANG
Messages
1
Reaction score
0

Homework Statement



The diagram is here http://img375.imageshack.us/img375/5...ionproblem.png

What is the tension in the cord connecting B and C? How far does A move in the first 0.250 seconds of movement assuming it does not reach the pulley?


Homework Equations



F=ma

The Attempt at a Solution



Tension1=(Mass of A)(acceleration)
Tension1 - (Mass of B)(gravity)=(Mass of B)(acceleration)
 
Last edited by a moderator:
Physics news on Phys.org
The link does not work, please attach the file instead of hotlinking it.
 

Thread 'Errors and significant figures'

I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
View full post »
Thread 'Collision of a bullet on a rod-string system: query'

Thread 'Collision of a bullet on a rod-string system: query'

In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
View full post »
Thread 'A cylinder connected to a hanging mass'

Thread 'A cylinder connected to a hanging mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
View full post »

Similar threads

Tension problem: 2 ropes, 3 blocks
Replies
16
Views
13K
Calculating acceleration of a prism and block connected to a wall through a rope and pulley
Replies
4
Views
322
Problem with pulleys - two fixed and one movable
Replies
22
Views
308
Rocket + Connected Body Dynamics problem
Replies
47
Views
3K
Newton's law problem: Pushing 2 stacked blocks on a horizontal table
Replies
13
Views
3K
Monkey accelerating up and down a rope
Replies
38
Views
4K
Tension force of block and rope
Replies
25
Views
5K
Falling mass, additionally accelerated by a rope
Replies
18
Views
1K
Block of mass M attached to rope of mass m
Replies
10
Views
2K
How Does a Speck of Dust Affect the Motion of a Box on an Inclined Ramp?
Replies
33
Views
4K

Hot Threads

Recent Insights

Back
Top