Torque Definition and 1000 Threads

Homework Statement A uniform cylindrical wheel of mass ##m_{1}## and radius ##R_{1}## rotates with angular velocity ##\omega_{1}##. It lies a certain distance (along the same axis) from a static wheel of radius ##R_{2}## and mass ##m_{2}##. The wheels are then pushed against each other with a...

Homework Statement A block of uniform density experiences a force F to the right, applied 5/3 m from the bottom of the block. The block is 2 m high and 1 m wide. Take the pivot point to be the point at the bottom right of the block. Find the value of the force that is just able to tip the box...

Homework Statement A 70 kg window cleaner uses a 16 kg ladder that is 5.6 m long. He places one end on the ground 2.0 m from a wall, rests the upper end against a cracked window, and climbs the ladder. He is 3.5 m up along the ladder when the window breaks. Neglect friction between the ladder...

Homework Statement In the figure attached, what is the torque about the pendulum's suspension point produced by the weight of the bob, given that the mass is 40 cm to the right of the suspension point, measured horizontally, and m=0.50kg? Homework Equations tau = rFsin (theta) or tau = lF...

Homework Statement A force is applied tangentially to a rigid body on a horizontal surface.if it doesn't slip find the frictional force https://ibb.co/m9sMEU Homework EquationsThe Attempt at a Solution The solution tells us to take axis about the bottommost point in contacy with the surface...

hey everyone I'm interested in finding the starting torque of a bike weighing 120 kg with a load of 150 kg and having the tire specification of 120/70 R17. starting torque means the amount of torque i need to provide to wheel in order to start moving the bike from rest. power source is a 4kw motor.

Homework Statement I've got a flywheel of Inertia = 0.0019302kg/m^2 (found via solidworks), when a torsion spring is released, a force of 10N acts on the wheel via astring attached 0.065m above and 0.0325m to the right of the wheel's axis at an angle of 40 degrees. Homework Equations What is...

Hi there, I am an engineering student studying my masters, but have run into a roadblock in my calculations. I know I'm missing something obvious but i just can't see it. Too close to the woods and all that! Anyway, i have the rear end of a motorcycle. to calculatew the overall moments, i have...

http://www.animations.physics.unsw.edu.au/jw/rotation.htm#rolling I have set up an apparatus similar to what the above link says (the first bit about brass object with shaft). So basically, the shaft is in contact when the brass is first rolling, then it suddenly accelerates when the edge of...

Homework Statement Good day, i am currently working on a design project. the device is part of a cricket bat knocking machine. i need advice on how i would go about calculating the motor torque required Homework Equations Tq = Inertia x angular acceleration The Attempt at a Solution attached...

Homework Statement A load was put on the right side of a seesaw 0.6 meter from its center as shown, on the other side a force of 49N is applied perpendicular to the seesaw surface 1 meter from its center, the setup is tuned to an angle of 30 from the horizontal axis as shown. On the right...

Hi Everyone, I am working on a project which requires me to determine the torque on the impeller shaft of stirred tank. Currently as I see it, there are 2 viable options: To measure the torque in the shaft using a torque transducer such as this one. This is by far the most accurate means of...

Homework Statement I had to answer which of the pulley arrangements illustrated (see picture) is in equilibrium (the drawing went a bit difficult, please see all outer boxes as equal in size and the middle ones as well) I managed to answer that it is arrangement C, by finding out that...

Let's say we want to change a wheel in a car. We want to remove bolts fastening the wheel using this tool: I have also drawn a diagram of the forces in operation: Now, from experience I can say that the point of rotation of the wrench will be the blue point. Now, trying to determine the...

Homework Statement We have a transmission system (plate-pinion), with a 38-tooth chainring and a 14-tooth sprocket. The distance between the crank (between the chainring and the pedal) is 170 mm and the pedal is overloaded with 60 kg and pedalled at a speed of 70 min-1. Homework Equations P =...

Homework Statement A force of magnitude 50N is applied at the bottom point Q of a disk of radius 8m that is pinned at P (leftŸmost point) See attached picture (a) Find the angle between the force and the vector from P to Q. (b) Find the magnitude of the applied torque. Homework Equations...

So.. I'm trying to figure out if a design Idea has any potential. The figure below shows a lever mechanism operated by a rack and pinion gear assembly. I've calculated the torque in the pinion to be 252 Nm. What will be the force at the contact pad, generated by the lever when in the closed...

Homework Statement In the following figure we have an homogeneous L-shaped bar that has weight 120N. It's articulated without friction at point A. It's vertical part has length 1m and its horizontal part has length 3m. Find the intensity of F that maintains the bar in equilibrium. 2 ...

If I lift a 1kg broom stick 1m when holding it from its center of mass, I will have done 9.8J of work and the broomstick would have gained 9.8J of potential energy. If I were instead to lift it from one end I would have to exert a much larger force due to torque. Lifting this same 1kg broomstick...

Okay...I have a question.In the case described in the picture, the medium between the two forces, which would normally cause stationary or uniform circular motion, is not straight..The moment arm of each force is equal, and the forces are also equal...Now my question is, would the sum of torques...

All, I have been going back and forth in my head on if I should shorten my extension or increase it and I need a second opinion to straighten me out. PN: 5T-I-SET https://snaponindustrialbrands.com/DSN/wwwsnaponindustrialbrandscom/Content/PDF/Snap-on%20Industrial%20Brands%20CAT4%20113.pdf Its...

What is the max amount of torque that could be applied to 1 in male threaded NPT pipe when it is threaded into a 1 in female threaded body that is made from ASTM 126 cast iron. The dimensions of the threaded female body are shown below.

Homework Statement All context is given here. I am trying to understand a few things about what Morin is doing. 1) How is proving that f(x) is a linear function, which I understand the proof of, relevant to the claim that the torques at the left end cancel? Also, the introduction of the...

I have some questions about torque and its role in gymnastics, or with anything that may rotate, possibly. First, is it possible for someone or something to use torque to rotate in two different axes of rotation at once? In a separate situation, is it possible to tilt using torque to tilt the...

Homework Statement Good afternoon, I hope someone could help me with this problem, it is killing my head. I have an aerogenerator, I already find the torque excerted by the air (75.8N) and the force transmitted by the gear (1010.6N). The problem comes when I try to draw the free body diagram to...

Hello. I'm currently entering into a Physics II class at the start of my third semester at UCONN (my first semester was introductory modern physics - kinetic theory, hard-sphere atoms, electricity and magnetism, scattering, special relativity, Bohr model, etc), and finished Physics I off with...

Homework Statement There are 2 situations- 1)a rod of length L is lying on a smooth horizontal surface with its one end hinged to the ground, a ball traveling with a velocity v hits its other end and comes to rest, How is the net external torque about hinge point O zero? 2) in the second case...

Homework Statement The cylinder of weight W is shown in the following diagram. The coefficient of static friction for all surfaces is ⅓. The applied force P = 2W. I am working on number 11. Find the distance d for which counterclockwise motion is initiated by P. Homework Equations T = F r...

If a speedboat has a motor that goes below the boat into the water, then shouldn't that motor produce a torque on the boat? Shouldn't that torque cause the bow of the boat to rise? And the faster it goes, the more likely it will flip?

Homework Statement In order for a vehicle (wheel) of radius r [m] and mass m [kg] to move at speed v [m/s], horizontal force F [N] should be applied at its axis. Find torque τ [N⋅m], equal to that force that must be applied on the hub. Homework Equations torque τ = r × F The Attempt at a...

The question is: The orange and blue cat are currently balanced on the see saw. The orange cat then eats a bird, which of the following could make the see saw balanced again? - I attached the picture that the question is referencing. And the possible answers are: A. Orange cat stays at same...

Hi Guys, I am am trying to find out the force required to hold a piston in its place without rotating during an assembly process. The torque applied on the piston is nearly 50 Nm and the wrench has a length of 250mm. Would T-rfsin(theta) solve my issue? or is there something else I would have to...

I have a question about torque convertors... They just aren't making any sense to me because they don't seem to follow laws of physics. I don't see how they can increase torque AT ALL without having something stationary somewhere against which to apply force.. I can only see them as a fluid...

Hey all, I started building my own flywheel inverted pendulum (i'm using a standard PID controller for the balancing). I came across many articles regarding the differential equation of the pendulum. Most article develop the motion equation using the Euler–Lagrange, few chose the Newtonian way...

1. Find the value of tan φ to 2 sf where φ is angle made by line of action of reaction force at hinge above horizontal. https://isaacphysics.org/questions/trapdoor_num Part B Angle of reaction forceHomework Equations Mass of uniform trapdoor: m=4.0kgm=4.0kgThe trapdoor is held open making an...

Homework Statement Homework Equations T = IAB sin θ ; θ is the angle between B and I. T = μ × B The Attempt at a Solution A) T = IAB sin θ T = √2 a b I B (θ = 45°) B) T = 0 , because θ = 0 C) T = 0 , because θ =180° D) T = μ × B The direction of μ = -k , because the fingers points to the...

Hello, I'm a engineering student currently taking Thermodynamics and we have this project for our finals which is a sort of reeling /towing device, the assignment consists in a reeling motor that has to tow a small car up along a slope, loaded with a certain weight, the team that is able to...

Homework Statement Hello, I have a problem I don't want how to approach, it is a little weird. It is a problem of equilibrium (torque) The situation and my approach is in the picture I uploaded. A beam is supported by the blue structure. On the beam it is a person(100N) at a distance of 3m in...

The way I have understood it is that dynamic torque involves angular acceleration, while static torque has zero angular acceleration: α =Δω/Δt = 0 But static torque still has centripetal acceleration with constant speed: ac = v2/r where v is linear velocity, and r is the radius Then F = mac...

Homework Statement Homework Equations M = Fd σ/y = M/I T/J = τ/r σalternating (σa) = σmax - σmin / 2 σmean (σm) = σmax + σmin / 2 soderberg: σa/σ'e + σm/σy = 1/FoS The Attempt at a Solution I am still unsure whether my progress so far is correct but.. I have calculated J to be 38.35e-9 m4...

Hello all, I was doing some behavioural modelling of the torque transfer characteristics of a belt drive system from the driver pulley to the driven pulley. While doing the same, i have tried to see how the angular velocity is getting transferred as well. I would explain my point with the...

Homework Statement A rigid beam with a length of 4.00 m has a mass of 50.0 kg and a uniform mass distribution. It is supported at either end as seen in the figure by resting on the supports, but is not attached to them. If you call the support on the right support 2 and the support on the left...

Good day! How do I calculate how much torque I need in a motor for my project? I must rotate a 100lb propellor, which is 11 ft in diameter, at 1 rpm .

Homework Statement Two spheres are placed side by side on an inclined plane and released at the same time. Both spheres roll down the inclined plane without slipping. (a) Using FBD, explain what force provides the torque allowing the sphere to roll down the inclined plane. (b) Which sphere...

So I have a mining dump truck with 6 wheels. Tire is 4022mm diameter and rim is 1600mm diameter. I know all information about the truck. Assume that the truck is standing still on a 10% incline. Do I still need to find coefficient of friction to calculate the torque on each tire ? Thanks

Homework Statement Homework Equations m=N*I*A T=m X B m = n(unit vector) *m The Attempt at a Solution To calculate m, I know it is just plugging in the information. Thus, m=0.8. Now, the question is computing the unit vector, which has me confused. Using the right hand rule, and going along...

Hi guys, Sorry if this has been covered before but I have been searching the forum looking for the exact information and have been unable to find it. I am currently carrying out a project to make a Honda GX35 engine suitable for competing in the Shell Eco-Marathon where I will perform...

Homework Statement Two circular plates, as indicated in the figure, slide one over the other. Calculate the torque lost in this situation. The rotation w of the internal radius of the plates R1, the outer radius of the plates R2, the absolute viscosity of the lubricant between the plates (η)...

Homework Statement Object of fifty kg and a r= 0.025m. What's the torque to accelerate from 0 to 0.4 in 20s. Homework Equations Torque = Moment of inertia * angular acceleration T = I * α The Attempt at a Solution [/B] m = 50kg r = 0.25m α = (0.4) / 20 = 0.02 I = mr^2 = 50 * 0.25^2 =...

For my senior design project we are designing a vertical axis wind turbine (VAWT) and trying to increase efficiency by adding flexible parts to the blades. We are currently in the process of ordering a motor/generator where we can test our new model against the same model but with standard...