Atwood Definition and 181 Threads

Homework Statement The two weights on the left have equal masses m and ar connected by a massless spring of force constant k. The weight on the right has mass 2m, and the pulley is massless and frictionless. The coordinate x is the extension of the spring from its equilibrium length; that...

Homework Statement An Atwood machine is constructed using two wheels (with the masses concentrated at the rims). The left wheel (m1) has a mass of 2.1 kg and radius 21.44 cm. The right wheel (m2) has a mass of 2.8 kg and radius 33.94 cm. The hanging mass on the left (m3) is 1.53 kg and on...

Hello everyone. I am a 12th grade Portuguese student and have a theoretical question to pose, which is probably more related to maths & statistics. In our class, we made an experiment with an Atwood Machine and deduced the formula for the acceleration of the system (ignoring the string's...

Homework Statement A modified atwood machine consists of a hoop hanging from a solid disk pulley whose other end is a string attached to massless axel through the center of a sphere on a flat surface. The sphere rolls without slipping. The system is released from rest. What are the linear and...

Homework Statement The descending mass of the pulley system (atwood machine) is 60g and the ascending mass is 55g. Using DataStudio to measured the slope of the velocity over time (read by the spinning spokes of the pulley) the acceleration (constant) is experimentally given as 0.316m/s^2...

Homework Statement The system is in equilibrium and all pulleys are massless and frictionless. Find the tension T. The acceleration of gravity is 32 ft/s2. Note : lb = slug · ft/s2. Answer in units of lb. Homework Equations F=ma=0 The Attempt at a Solution So, I'm...

Homework Statement It appears that the subscript is not working properly, please take m1 to means mass 1 and m2 to mean mass2 Atwood's machine consists of two masses connected by a string that passes over a pulley, as show in the figure. Consider the pulley to be massless and frictionless...

In the Atwood machine, what should M be, in terms of m1 and m2 so that it doesn't move? [PLAIN]http://img163.imageshack.us/img163/8288/atwood.jpg My work: It doesn't move, so I said T1=Mg (T1 is the tension in the rope attached to M), I believe the tension in the rope connecting m1 and m2 is...

Homework Statement "Calculate the acceleration of an Atwood machine if one of the two weights is four times as heavy as the other. What is the tension in the string if the lighter body has a mass of 3kg? Find also the time for this mass to cover a distance of 0.45 meter." So: *Given...

The two block in an atwood machine have masses 2kg and 3kg. Find the work done by gravity during the fourth second after the system is released from rest.I have attached my attempt here..Kindly tell me where I went wrong. I am sure that I didnt go anywhere wrong in finding the acceleration and...

Homework Statement Basically, an ideal Atwood machine is released from rest (m1 != m2) and I have to find out how high the mass, say m1, bounces after an absolutely inelastic collision with the floor (no energy is lost). Homework Equations Conservation of energy, Newtons equations...

Homework Statement The goal is to solve for angular acceleration with the end variables being m1,m2,m3, R, r, g. M2 > M1. An atwood machine is a pulley with 2 masses, one on each side. Homework Equations Tnet = I * angular acceleration Fnet = ma The Attempt at a Solution I know...

hi, why does a massive pulley cause different tensions in a length of cable? I've looked for answers but got only that "the pulley needs to be lifted". Couldn't really picture it. Some maths would be nice :smile: cheers!

Homework Statement My question is about a double atwood machine like this: http://farside.ph.utexas.edu/teaching/336k/Newton/img1915.png Now imagine that m1 = 5m, m2=2m, m3=3m My question is: why does the upper pulley rotate despite the fact that the masses on either side are...

Homework Statement An Atwood machine has a mas of 2.50 Kg connected by a light string to a mass of 7.00 Kg over a pulley with a moment of inertia of 0.0652 kg m^2 and a radius of 11.3 cm. If the system is released from rest, what is the speed of the masses after they have moved 1.45 m? (Hint...

Homework Statement Consider the Atwood's machine of Lecture 8. We wish to use this machine to measure our local acceleration of gravity with an accuracy of 5% [i.e. (Delta g)/g = 0.05]. To begin, suppose we let the mass m_1 fall through a distance L. 3.1 Find an expression for the...

Homework Statement String that is equal in length to the string connecting the pulley is sometimes tied to the bottoms of the two masses, where it hangs suspended between them. Explain why this would reduce experimental errors. Homework Equations The Attempt at a Solution I'm...

1. In the figure below, the pulley is a solid disk of mass M and radius R with rotational inertia .5MR. Two blocks, one of mass m1 and one of mass m2 hang from either side of the pulley by a light cord. Initially, the system is at rest with block 1 on the floor and block 2 at height h above...

Homework Statement A frictionless, massless pulley is attached to the ceiling, in a gravity field g = 9.81 m/s2. Mass Mb is greater than mass Ma. The tensions Tx,Ty, Tz, and the constant g are magnitudes. (Select a response for each statement.) Please look at this pic...

Homework Statement http://isites.harvard.edu/fs/docs/icb.topic725237.files/problemset3_2010.pdf (Problem 1) Homework Equations f=ma, string conservation The Attempt at a Solution I'm not really sure how to do this. I know that the t of the string on the left is equal to the two...

Homework Statement http://imgur.com/a2fLm Homework Equations F = ma is it The Attempt at a Solution The problem I had is that it's attached to the floor all of a sudden. Never before have we had Atwood problems like this, and I can't find any online... I drew out the free body...

atwood machine problem -- symbolically solving for mass? Homework Statement Symbolically solve the equation derived for the acceleration of the Atwood's machine in part 1, A-3 for the mass m in terms of M, g, and the acceleration, a. (No numbers.) This question is part of a lab, so of...

Homework Statement I have a double Atwood machine; on left side there is a heavy thing which weight 4m, on right side there is another circle (this circle which go around in atwood machine) and on left there is heavy thing which weight m, on right - mass which weight 3m. Now the 3m thing starts...

Homework Statement Two masses are suspended from a pulley of mass m supported by an axle (Atwood machine). What is the net torque acting on the pulley wheel in terms of T1 and T2? There is friction between pulley and rope. Ropes are massless and pulley can rotate without friction about its own...

Homework Statement ATWOOD MACHINE LAB Draw a free body diagram of m1 and another free body diagram of m2. Using these diagrams, apply Newton’s second law to each mass. Assume that the tension is the same on each mass and that they have the same acceleration. From these two equations, find...

1. ROUNDDISK | | | | | | (10kg mass) Mass M Friction of the disk: Us=Uk=0.2 between rope and disk. Excuse my drawing. Basically it's an atwood...

Homework Statement I'm looking at how to calculate the tension in the ropes in an Atwood machine (two masses hanging on either side of a pulley, with mass 2 on the right side). We were told, for connected objects, that it was easiest to treat the two objects as a system and use a curved...

I have two problems which appear equivalent, but apparently they are not. The first one is this: M, a solid cylinder (M=1.75 kg, R=0.131 m) pivots on a thin, fixed, frictionless bearing. A string wrapped around the cylinder pulls downward with a force F which equals the weight of a 0.750 kg...

1.In the diagram above, the pulley is frictionless and the ropes are massless. Given that m1 = 14.5 kg and m2 = 23.0 kg, calculate the acceleration of m2 downwards. What is the magnitude of the tension in the string...

[b]1. Homework Statement [/b ]http://teacher.pas.rochester.edu/phy121/PracticeExams/FinalExam/FinalExam_files/image015.jpg This is not the exact picture, instead of having M1 there let end of the string be connected to the ground instead Find the tensions and accelerations Homework...

Homework Statement A 59-kg window-washer stands on a 17-kg platform. The platform is fixed to a rope that passes over a pulley attached to the ceiling, which allows the window-washer to raise himself and the platform. (a) To accelerate himself and the platform at a rate of 0.84 m/s2, with...

Homework Statement For this problem the atwood's machine is used. There is a simulation where, m1 is 1.0 kg and m2 is 1.1 kg. Mass m2 rests on the floor that exerts a normal force, FN, on m2. There is no motion (i.e.. the system is in equilibrium). What is the normal force, FN, and what is...

I had this question on the MCAT earlier, and I'm not sure if I did it properly. There is an Atwood machine such that a person of mass m is holding onto both ends of the string. What is the tension in the string? According to my calculations, since a=0 since the string is not moving, T=0.5m*g. I...

Homework Statement An Atwood machine is constructed using a disk of mass 2.4 and radius 23.4. What is the acceleration of the system? The acceleration of gravity is 9.8 . Picture: http://img.photobucket.com/albums/v356/SfTbLxMiShi/atwood.jpg Homework Equations \sumF=ma torque = I(alpha)...

Homework Statement An Atwood machine is constructed using a hoop with spokes of negligible mass. The 2.4 kg mass of the pulley is concentrated on its rim, which is a distance 20.9 cm from the axle. The mass on the right is 1.36 kg and on the left is 1.79 kg. What is the magnitude...

1. A wheel is rotating about an axis perpendicular to the plane of the wheel and passing through the center of the wheel. The angular speed of the wheel is increasing at a constant rate. Point A is on the rim of the wheel and point B is midway between the rim and the center of the wheel. For...

Hello all. I've read the forums a few times for help but this is my first time posting, so please bear with me if I make a few mistakes. I'm studying for my final undergrad assessment, so I thought a good way to study would be to make "advanced" versions of problems I'm already familiar with...

Homework Statement Well gravity's acceleration on objects is 9.8 m/s^2 and the question is why the Atwood Wheel moves faster as the mass on side is increased. Homework Equations N/A The Attempt at a Solution I am thinking it has something to do with inertia and the torque of the...

Homework Statement A uniform circular pulley of mass 2m can rotate freely about its axis of symmetry which is fixed in a horizontal position. Two masses m, 3m are connected by a massless string which passes over the pulley without slipping. The whole system undergoes planar motion with the...

In the figure below, the pulley is a solid disk of mass M and radius R, with rotational inertia (MR2)/2. Two blocks, one of mass m1, and one of mass m2, hang from either side of the pulley by a light cord. Initially, the system is at rest, with Block 1 on the floor and Block 2 held at height h...

Homework Statement Hello i am just studying for an exam coming up and, i am looking at complex atwood machines, I am not really familiar(or understand fully) the conservation of string, if anyone knows a place where i can learn a little bit more about it that would be apreciated, thank you...

Homework Statement Useing atwood machine, determine acceleration, knowing weight of mass to be pulled and mass pulling, distance mass travels, and information provided by photogate[which we don't understand what exactly this information is] Homework Equations Unknown... The Attempt at a...

Homework Statement In the Atwood machine shown below, m1 = 2.00 kg and m2 = 7.50 kg. The masses of the pulley and string are negligible by comparison. The pulley turns without friction and the string does not stretch. The lighter object is released with a sharp push that sets it into motion at...

First of all, I'd just like to apologize for me asking for help in my first post. I know that seems kind of lame. Homework Statement The lab involves an Atwood's machine which is basically two masses attached to some kind of pulley system so that if the masses are equal, the system will be...

Homework Statement I have 3 graphs: accleration vs. total mass, acceleration vs. mass difference, and acceleration vs. inverse total mass. How can I get the gravitational acceleration from these 3 graphs ? I am doing a lab report on word and excel Homework Equations I don't...

In the drawing, there are two blocks connected by a rope and pulley. One block is on the table while the other is hanging off of the table. Block A, with a weight of 396 N, is on the table. Block B is hanging off of the table, and has a weight of 180 N. Ignore all frictional effects and assume...

Homework Statement A Modified Atwood's Machine has a 10 N cart on a frictionless, horizontal track with a 10 N hanging weight attached to a string connecting the two weights. A second track is set up with the hanging weight replaced by a person who can maintain a 10 N pull on the string (as...

Homework Statement Given in this problem is a modified Atwood Machine (block A sits on a horizontal surface with a massless rope attached which goes horizontally over a frictionless pully attached to the edge of the "cliff" which is attached downward to block B) W of A = 45.0 N, W of...

Hey Guys, I have attached my problem and all my work for it. The work presented in my handwriting is the attempt I figure most accurate. All my other attempts were experimental to no avail :( I think I must be overlooking something really basic. Any assistance or pointers are greatly...

Homework Statement A light pulley can rotate freely about its axis of symmetry which is fixed in a horizontal position. A massless inextensible string passes over a pulley . At one end the string carries a mass 4m, while the other end supports a second massless pulley. A second string...