Torque Definition and 1000 Threads

I'm trying to find a gearmotor that applies enough torque to close this door. Door Mass = 136lbs Door Dims = 40in width x 85in height Time to close = 60sec Door's rotation = 180 degrees Any tips and advice would truly be appreciated.

Homework Statement Homework EquationsThe Attempt at a Solution F12 is just an internal force caused by the joint 1 right? how can an internal force cause a torque?

Homework Statement What is the torque τB about axis B due to the force F⃗ ? (B is the point at Cartesian coordinates (0,b), located a distance b from the origin along the y axis.) Express the torque about axis B in terms of F, θ, ϕ, π, and/or other given coordinate data. Homework Equations...

A plate is riveted with a rivet having small rod like projection over the head and the point as shown in drawing.Considering we fix the plate to a vise,and then giving torque to the Rivet Rod;What will be the Maximum Torque the rivet can withstand without getting loosened and how to calculate...

Hello, An object moves outward in shaft radially due to centrifugal force. lest say it weights 1kg . in a timestep=0.0001 it travels 0.0017 meters this is actually the difference of two radius, let say first radius r1 = 0.25 meters second r2 = 0.25 + 0.0017 meters rpm of the rotating system...

I am doing some calculations to optimize the power to weight ratio and gearing of a RWD car. I have torque charts and can calculate the force put to the track by each wheel and the static frictional force by the track on each wheel. I am trying to determine what the minimum speed is for the...

Is calculating the Euler angles analitically possible? I am trying to obtain the angles to transform the body-fixed reference frame to the inertial reference frame. I can get them without problems with numerical methods. But I would to validate them analitically, if possible. I followed the...

Hi, good afternoon the problem is this: This device was assembled with the purpose of calculating the torque of a small motor. It measures the force F through a charge cell. The calculations performed for the moment were made using the data provided by the load cell and distance "d". However...

Homework Statement Solve problem 8.1, but using force and torque rather than conservation of energy. (Image of 8.1 attached) Homework Equations T = f x d f = ma The Attempt at a Solution I think I might have to find the torque on the disk, which I’m guessing would be 2mgr - mgr, but I’m...

A customer of ours called and is asking for the static and dynamic torque of a right angle worm gearbox, how would I calculate this? Secondly why would this need to be known? Thank you to all of those who reply. SevenToFive

Homework Statement The rotor blades of a quadcopter are 10cm long. Given that the thrust force generated by each rotor is 1N (giving a total of 4N for 4 rotors), calculate the torque () on each rotor, and the current drawn (I) from a 10V battery, given the following: Density of air, a = 1...

Homework Statement In this diagram, I wondered if there is any torque due to the normal force from the hinge, once the support stick is removed. I also want to know what the normal force would be at the hinge. The cup and ball are to be ignored here (essentially massless). Homework Equations...

<Moderator's note: Moved from a technical forum and thus no template.> I am trying to design and perform a physics lab. It needs to show the relationship between torque and angular momentum. I have gotten as far designing a 4" PVC coupling and have it on a ramp. I am not sure where to go from here.

Homework Statement The following question involves a torque acting on a particle in rotational motion. It provides practice with the various equations for angular velocity, torque etc A particle of mass ##m## initially has position...

Homework Statement A square clock of inertia m is hung on a nail driven into a wall (Figure 1) . The length of each side of the square is ℓ, the thickness is w, and the top back edge of the clock is a distance d from the wall. Assume that the wall is smooth and that the center of mass of the...

Homework Statement The fulcrum of a uniform 20-kg seesaw that is 4.0 m long is located 2.5 m from one end. A 26-kgchild sits on the long end. Determine the mass a person at the other end would have to be in order to balance the seesaw. Homework Equations Torque = force x distance from...

Homework Statement Not really a homework question but a question about units that I can't figure out. Homework Equations Torque units = N*m N=kg*m/s2 I units = kg*m2 a units = m/s2 Now my formula sheet says T=Ia The Attempt at a Solution torque=kg*m/s2*m=kg*m2/s2 Ia=kg*m2/s2*m/s2=kg*m3/s2...

Hello, I'm trying to get a conceptual understanding of why switching gears makes pedaling easier or harder. I think I understand what's happening with the rear gears, but I'm not sure I understand what's going on with the front gears. I will outline my thinking: Let's suppose our bicycle has...

I need to settle an argument between two mech eng colleagues... Here goes. There is an infinitely rigid beam running between two walls. The attachment points are fixed. There is a force acting downwards on the center of the beam. The disagreement is on whether there is a reactive torque in the...

https://ibb.co/drnjDG will the torque for this force = 0 explain according to the torque relation

Homework Statement Attach a 216.82 g mass at the 90 cm position. Red-adjust the position of the knife edge such that the meter stick is once again balanced. Determine the mass of the meter stick without using the balance. 2. Homework Equations Torque = force * distance from center F=ma T1+T2...

A uniform beam of length L and mass m is inclined at an angle θ to the horizontal. Its upper end is connected to a wall by a rope, and its lower end rests on a rough, horizontal surface. The coefficient of static friction between the beam and surface is μs. Assume that the angle θ is such that...

Homework Statement Homework Equations Torque = r x F The Attempt at a Solution I expect the door to fall.

Please help me... Tell me how to find real torque for rotating spiral of dough mixer. We need to mix 25kg dough with adding water and Ingradients. Spiral made by ss rod of 25mm dia. Spiral dia is 250mm. Rotating speed is 250rpm(max). When start the machine rotate both spiral and bowl. Dough...

How to calculate following input and output parameters- 1. Input at starter motor - Drive torque and power as shown below 2. Output at flywheel axle - torque, power, Kinetic energy, centrifugal force as shown below Input parameters: starter motor rpm -3600, Gear ratio- 18: 1 if any parameter...

Homework Statement The two blocks, m1 = 3.3 kg and m2 = 4.8, in the figure below are connected by a massless rope that passes over a pulley. The pulley is 12 cm in diameter and has a mass of 2.0 kg. As the pulley turns, friction at the axle exerts a torque of magnitude 0.64 N · m. If the blocks...

Hello, In the same frame of reference and using the same coordinate system , the magnitude of mechanical torque depends on the position of the center of rotation (pole): the lever arm distance varies depending on where the pole is. For static equilibrium situations, the net torque is zero so...

Homework Statement A 40.0 kg uniform platform is suspended by two cables, 2.00 m apart, where the centre of the platform lies midway between the cables. A 5.00 kg paint bucket is placed on the platform, 24.0cm to the right of the right cable, as shown in Figure A2.15. What is the tension in...

Homework Statement A car accelerates from rest on a horizontal surface. The engine provides a torque of τ = 200 Nm on each of the two front wheels. Each of the four wheels on the car weigh m = 15 kg, have radius R = 0.35 m and can be considered solid, uniform discs. The rest of the car (not the...

hi all, changing my cartridge of 21 gpm to a small one 12 gpm I will have more torque whith less rotation in my winch hd motor? it's sound correct? if yes have a formula to know how much more % ? obs - keeping same pressure and same engine HP drive rpm . in case of will need more...

I've had a side project in mind for a while involving motorized Rollerblade wheels, however I need to figure out a motor size that would give me the needed torque to actually accelerate 250lbs up to 25mph. I realize even a 5hp electric motor is large but I was wondering if ohms have any affect...

If you are using a wheelbarrow, the materials in it should be placed to as close as the fulcrum (the wheel) as possible. This is because the load torque of the materials will decrease, and the effort force required to support the wheel barrow will decrease as well, because Torque = Fr. Is this...

What is the difference between tangential and linear acceleration of a circular object (let's say a ball)? Also, how does the torque contribute to linear acceleration?

Homework Statement Hi. I ve got a problem, where I have to show torque by integrating the weight of the rod over the whole it's length. Homework Equations [/B] Result, what I am suppose to get is: ## \tau_{rod} = \frac{mgb}2 ##The Attempt at a Solution [/B] When I try to integrate, I am...

Homework Statement When the motor in the figure below lowers the m = 1200kg mass, it produces a tension of 1.15E+4N in the cable on the right side of the pulley. The pulley has a moment of inertia of 71.3kgm^2 and a radius of 0.794m. The cable rides over the pulley without slipping. Determine...

Homework Statement A 250 g , 25-cm-diameter plastic disk is spun on an axle through its center by an electric motor. What torque must the motor supply to take the disk from 0 to 1500 rpm in 4.6 s ?Homework Equations ET=iα The Attempt at a Solution I just really don't know where to start

Homework Statement A thin, uniform, 18.5 kg post, 2.10 m long, is held vertically using a cable and is attached to a 5.00 kg mass and a pivot at its bottom end (as shown below). The string attached to the 5.00 kg mass passes over a massless, frictionless pulley and pulls perpendicular to the...

Homework Statement I wanted to calculate the force I need to do a push up. I'm 1.7m tall and weight 72kg. The distance between the top of my head and my shoulders (where the shoulder joint would be) is around 0.3m and my arm length is 0.63m. Homework Equations + The Attempt at a Solution[/B]...

i need to select the motor for a roller of Diameter 300mm , length 1350mm having inertia 3.95 KG.M ,Which needs to accelerate from 0 to 600MPM at 20 sec . Assuming existing web tension acting on the roller 20 N/M. THANK YOU

Hi, I'm making some confusion about statical and dynamic behavior. if i have a body distant from the rotational axis, i have a static torque for maintaining it on position (i suppose ##\vec g \perp \vec r##). But if a supply more torque i accellerate the body. How can i quantify this...

So I was curious about something. Having a flat tire today and having to change my tire made me wonder. I understand torque and force are 2 different things though related they have separate meanings. So my question is if I have a 2 foot tire iron and I am torquing my nuts. Let's say they...

Question that’s been boggling my mind. If you have a 1 ft torque wrench and your tightening your wheels on you Car and apply a force of 70 pounds 1 ft from the nut I’m applying 70 pounds of downward force on the nut but applying a much larger torque to the nut. Now if I apply a 70 lb force 3”...

Homework Statement https://ibb.co/imui5b[/B] hey i need to calculate max normal stress at BC and max shear stress at b and c is my torque equation right? Homework EquationsThe Attempt at a Solution so i thought Σma=0 Cx*6+80*6+80*2=0 i ll find cx and then ΣFx=0 and ΣFy=0

I would like to see if I am on the correct path here and didn't miss anything for a project at work. If I am trying to move a cart that weighs 10 tons, this includes the weight of the cart and its load, the wheels of the cart are 10 inches in diameter, and with a 40:1 ratio gearbox I need to...

Homework Statement A bowling ball sits on the smooth floor of a subway car. If the car has a horizontal acceleration a, what is the acceleration of the ball? Assume that the ball rolls without slipping. Homework Equations torque = R x F = Iα aball= Rα Isphere = (2/5) MR2 The Attempt at a...

First of all, I will like to say that I'm teaching myself physics because I've never learned it at school. So, please excuse my ignorance and bear with me. This is not really a homework problem but rather a problem I thought on my own given a situation in real life. 1. Homework Statement...

Homework Statement A uniform rigid bar of weight W is supported in a horizontal orientation as shown by a rope that makes a 30° angle with the horizontal. The force exerted on the bar at point O, where it is pivoted, is best represented by a vector whose direction is which of the following...

Hi. I'm a student and working on a project I have designed in Inventor. For this project I will use a split ring collar. The m6 screw (not shown) tension is 17kN. How do I calculate how much torque this ring can resist when clamped on a shaft? Dimensions are ID 30mm OD 50mm width 30mm Dan

In class while learning about electromagnetism, I was given the following two equations: U=-μ⋅B τ=μ×B where μ=IA First of all, what does μ stand for? How should I interpret the relationship between potential energy (U) and torque? Can someone explain this in terms of μ and B?

I am trying to determine the failure mode of an aluminum aircraft fitting. It's a standard AN814-3D, if that matters. Material is 6061-T6. Book tensile strength is 45,000 psi. Thread is a 0.375-24 standard 60 degree UN thread. Thread relief is 0.310 diameter. I.D. of fitting is 0.125 diameter...