# pulley

1. ### Proper Name of Pulley Mechanic shown?

i was wondering if there is a proper name to this mechanic specifically, beyond conservation of energy etc. Something where someone knows exactly effective mechanic used. . From here this goes to not just adding a multiplying pulley system on tail of other , but insetting it inside to pull 2x...
2. ### Position of a floating pulley

Hi, I am studying the behaviour of a pulley that is attached to a sling. The situation looks like this: https://github.com/jeroenstaps/Floating_Pulley There is a drum that can give or take cable. Then there is a floating pulley with a cable through it. The pulley can move on the circle...
3. ### Object and bead on a pulley

Need help with this excercise. There is a pulley. On the left side hangs object of Mass M and height L. On the other side a bead of mass m slides down the rope. After release from rest, bead passes the Object in time T. What is the friction force (lets call it "P") of the bead? What is...
4. ### Movable pulley system problem

Hello, I'd be grateful if someone could check my solution to the following problem on movable pulleys. Forces with pulleys tend to confuse me. Excuse if terminology is a bit wonky, I'm translating this from another language. Steel cube with side of length a = 0.2 m and density r = 7800...
5. ### The tension force of a pulley

I have a problem that, If there is no friction in the pulley why the T1 force equals to the T2 force. Can you give me the reasons for that.
6. ### Acceleration of a Mass in a Pulley System

Hello everyone I'm new here... can you help me in this problem thank you.
7. ### Pulley System (Physics C Dynamics)

I've been stuck on this problem for a while. Any help is appreciated! Two masses are connected in a pulley system as shown in the figure. Assume both pulleys are frictionless, and also assume that the strings and pulleys are of negligible mass. If M1 = 67 kg and M2 = 5 kg, what is the...
8. ### Pulley, center of mass

I'm working on the following problem: A massless pulley of diameter 50mm has a massless cord around it connected to two hanging containers of sugar. For the part I'm working on, one container has mass 520g, and the other has mass 480g. They start out at rest at the same level. I need to find...
9. ### pulley system with equal force (limited space)

Hi Aplogies for what may seem a simple query, I have recently suffered a stroke and have built a simple pulley system with 8kg weight ether end to move objects back and forth over a distance of 10 meters I need to be able to move the items from one end to the other and back again from point A...
10. ### Basic ques but getting confused

Just a simple Pulley question to start with - Imagine an ideal pulley with equal masses M hanging on it on each side. So I raise the level of one mass with my hand, so right now , when i am holding one mass, they are at different levels. Now I let go off the mass. Would they move and try to...
11. ### Pulley and acceleration problem

Hi everybody out there, hope you are having a great day. I have tricky problem (well I have found it tricky) and I just can't see how to arrive at the correct solution. I hope someone can give me some help in tackling the question. The problem involves a mass (m1) which sits on a smooth flat...
12. ### Two masses and a pulley...

Hey, was wondering if anyone might want to help me check my thinking on this fairly basic exercise? We have a system consisting of a pulley in the form of a solid cylinder and two blocks hanging from it by a massless rope. The goal is to find the total force on the string by which the pulley is...
13. ### Friction Pulley System

hi i just want to ask how to solve a pulley system with a box and in that box there is also a box (pic) do u jist add the box a and box b with the 10kg? i only know how to solve a simple pulley system but idk how to solve it if there iis a box in the top of the box. pls help me thank u...
14. ### Acceleration of a block on a pulley with mass

A 1.4 kg block and a 2.7 kg block are attached to opposite ends of a light rope. The rope hangs over a solid, frictionless pulley that is 25 cm in diameter and has a mass of 0.72 kg. When the blocks are released, what is the acceleration of the lighter block? I think I've figured out that...
15. ### A small doubt on pulley :)

Just a simple Pulley question to start with - Imagine an ideal pulley with equal masses M hanging on it on each side. So I raise the level of one mass with my hand, so right now , when i am holding one mass, they are at different levels. Now I let go off the mass. Would they move and try to...
16. ### Mechanics problem - Two masses and a pulley with working

For mass y, I set my coordinate system to be the usual so: W = -yg T1 + W = 0, so T1 = yg For mass x, I set my coordinate system so that +ve i is directed up the plane and +ve j is directed perpendicular to the plane (ie. the normal reaction) N = Nj F = Fi W = -xg sin θ i - xg cos θ j T2 =...
17. ### String and Pulley Problem

The masses of blocks A,B, and C are 4kg, 10kg and 2kg respectively. Knowing that P=0 and neglecting the masses of the pulleys and the effects of friction, determine a) the acceleration of each block and the tension in the chord. I know that we have to draw FBD's for each block and then figure...
18. ### Pulley problem

Hey, i have the mark scheme for this question but i simply do not understand it.the question is here : maths problem , part E . the answer is here:answer . I don't understand, what i did was use equations of motion , from the point when Q reverses and falls 3.15 m, therefore giving me the...
19. ### System pulley help!

A 70-N block and an 35-N block are connected by a string as shown. If the pulley is massless and the surface is frictionless, the magnitude of the acceleration of the 35-N block is: Should I assume that this system is not moving? Wouldn't the acceleration of the 35 N block be 9.8 m/s^2 ? Or...
20. ### Pulley system again with more pulleys

I have the problem with pulleys again and it has not been covered in class, but were expected to solve this. I have no clue on where to begin. PROBLEM 4-43. Need to solve load in cable CD. in solving in EFx and EFy=0 components. Can someone help me start this please. With this many pulleys...