pulley problem Definition and 171 Threads

Homework Statement This is a problem off of http://www.physics247.com/physics-homework-help/pulley.php It is question number 6 but with an additional part and slight modification by my teacher. I will copy and paste it here but it may be best to view the link for the diagram. Two blocks, one...

Pulley Problem. m1=10kg and m2=20kg both at angle 40 degrees.Find the force, parallel to the frictionless plan.e that will allow the systme to move at constant speed. I would know how to solve this problem if it wasn't constant speed.but it being that just through me off.All i want is a...

Here is a question that I am not sure where to start. A block of mass m1 = 6.07 kg on a frictionless plane inclined at angle = 33.3° is connected by a cord over a massless, frictionless pulley to a second block of mass m2 = 2.46 kg hanging vertically (Fig. 5-54). (a) What is the acceleration...

Two packing crates of masses m1 = 10.0 kg and m2 = 4.50 kg are connected by a light string that passes over a frictionless pulley as in the figure. The 4.50 kg crate lies on a smooth incline of angle 39.0°. a) Find the acceleration of the 4.50 kg crate. b) Find the tension in the...

The cable at C is being pulled down at a velocity of 4 \frac{ft}{s}. The cable at C is also decelerating at a rate of 2 \frac{ft}{s^2}. At what velocity and acceleration is the block at A moving? http://img222.imageshack.us/img222/729/engr204problem121795wl.jpg I have the following...

Here's a pulley problem that has got me stopped; I'd appreciate any help that's offered. There are two blocks, A (44 N) and B (22 N) connected via a rope that stretches over a pulley. Block A is resting on a table, and block B is hanging over the edge. Block C is positioned on top of Block A...

I am having trouble setting up the following problem. I can work it out if there is no acceleration, however with acceleration it seems like there are too many variables. http://img160.imageshack.us/img160/9126/untitled4bd.jpg What I have so far: mass of block = 28 kg = Mblock...

I have some questions about the following problem: I know that Ft1 and Ft2 are equal. Is Fg the only force that needs to be taken into account for Ft4? Does the force being applied to lift the piano need to be taken into account for Ft3? If not, is it just m*g...

"Two blocks are attached to a string that passes over a frictionless pulley. One of the blocks is 4kg and rests on a rough horizontal surface. The other block is a 2kg block that hangs over the edge of the surface. When the system is released, the 2 kg mass falls from rest and attains the...

This is hard to explain without having a picture, but there is a 1 kg hanging off the table. And a string is connected from that to a 10kg weight. From that weight on the other side, a 5kg weight hangs off the table. They system is moving to the left at 2 m/s. Do I have to compensate for that...

Here is a link to the pulley diagram: http://img287.imageshack.us/img287/2904/1711082ao.gif (a) What is the largest value the force F may have so that m2 remains at rest on the floor? I said 20N here (which is wrong) because if m2 is on the floor, there will be a downward force on the...

a 3kg object sits on table with a pulley attached to it. there is a M object hanging from the pulley. dropped from rest the system moves 127.5cm in 1.65951s. there is no friction. what is the value of the mass M. i used x=vot+1/2at^2 to find the accleration of the 3kg object. it is...

Okay, we've been studying this for a while but I still always seem to forget how to do these and they aren't anywhere in my Physics book. Problem 1: Sign hanging at rest from two cables. One is angled at zero degrees while the other is at 135 degrees. The sign is 10kg. Find the tension...

I am having a problem with this: One end of a light spring with force constant 100N/m is attached to a vertical wall. A light string is tied to the other end of the horizontal spring. The string changes from horizontal to vertical as it passes over a solid pulley of diameter 0.04m. The pulley...

Here's a problem I've been having trouble with. I was hoping someone out there can give me some insight on it. Basically it's just two masses both coupled together with a massless rope on a frictionless and massless pulley on an inclined plane WITH friction. Here's the diagram. The problem...

I'm trying to help a friend with this problem and we are both very stuck. I wanted to ask for help here for him. -------A 1.0 kg tin of anti-oxidants on a frictionless inclined surface is connected to a 2.0 kg tin of corned beef. The pulley is massless and frictionless. An upward force F r...

There is this question that I feel like it should be easy, but I can't get the right answer. There is a box sitting on a horizontal surface attached to another box that is sitting on a "decline" The horizontal box is bigger than the other one. a horizontal force is applied to the horizontal...

help with pulley problem! I got this pulley question in class and i absolutely don't know howo to solve it. Basically there's a 100lbs block (suspended in air) that is being held up by a pulley on top and the rope is anchored on the other side. Your help will be greatly appreicated...

I was working my way through a series of problems when I came up against one that has me stuck. If anyone here can assist I would certainly appreaciate it. I found a exact copy of the problem online here: http://www.faqs.org/docs/Newtonian/Newtonian_145.htm Problem #13 I have tried several...

I'm working on this rather simple pulley problem, and can't quite figure it out. It doesn't even involve acceleration. Could anyone help me out? Thanks. Here's the problem: A crate is pulled up using frictionless pulleys in the manner shown in the figure. The angle is 45 degrees. The masses...

Hi. I am trying to solve for two things here. I need the speed of mass 1 when mass 2 hits the ground, and I need to find out how high mass 1 will climb before returning to rest. Mass 1 is 3kg, mass 2 is 5kg, and they are connected by a light pulley and string. mass 2 is elevated 4meters...