Wheel Definition and 840 Threads

A truck with 32- inch- diameter wheels is traveling in a speed of 15 miles/hour. Find the angular speed of the wheels in radians/minute. How many revolutions per minute does the wheel make? My teacher mentions that we are trying to find the angular speed in this. Another question is how do I...

Homework Statement "Assume you want the car to accelerate towards the right. When a wheel is spinning, the contact point with the ground is moving towards the left. The direction of the frictional force on the portion of the wheel contacting the ground is opposite to the direction of the...

http://imageshack.com/a/img33/5853/ge7y.gif In the above diagram,the part 3 the planetary wheel(its not the gear at the input or output side but in the middle of the differential). I call it the planetary wheel because I consider a bevel gear differential just an approximation of a planteary...

Homework Statement I'll attach the screenshot, it has everything. Homework Equations This is in the section of absolute motion analysis.The Attempt at a Solution I actually was able to solve the problem correctly, but it was annoyingly complicated and I'm curious as to whether there's a better...

Most graphs show that when wheel slip is zero then the friction is zero. But I can't get it, as when the vehicle stand still on slope, the friction keeps the vehicle from going down hill Could someone explain for me? http://www.albi-engineering.nl/Electronics/Traction_Control/slipgraph.jpg

My question relates to torque vectoring during a turn(high speed). Wikipedia says torque vectoring is mainly done on the rear wheels during a turn. The front wheels receive the same amount of torque though. Why do the front wheels receive the same amount of torque during a turn? Say my engine...

How do I calculate the acceleration of the falling weight? It is hanging from a string which goes through a wheel, and is attached to a sphere with thin walls. The string doesn't stretch and the wheel and the sphere spin without friction. The fact that the weight is connected to multiple...

I am trying to come up with a formula to use with my labview program that will calculate wheel torque required to move a vehicle with some given variables. I have vehicle speed, vehicle weight, % grade or angle, tire diameter. I am trying to create a dynamometer that can determine proper motor...

Let's imagine a spoke on a spinning wheel like that of a cart wheel. Now we know and can see that the outermost particles of the spoke have a higher speed than the inner particles. As we get closer and closer to the centre, we know that the speed gets slower and slower. Here's my question...

I don't know what is the principle of Fizeau's method. In the experiment a rotating toothed wheel is used.But why the toothed wheel is used? If the toothed wheel is not used,why the time for the light traveled cannot be measured?

Homework Statement The Singapore Flyer is te world's largest Ferris wheel. It's diameter is 150m and it rotates once every 30 min. a) Find the Magnitude of the average velocity b) Find the average acceleration at the wheel's rim. The Attempt at a Solution a) |v→| = Δs/Δt=75m.2π/30mins =...

Homework Statement Suppose a wheel with radius R is resting on a non-inclined surface. A torque \tau is applied to the wheel center. In an attempt to prevent wheel from spinning, the ground applies a static friction force to the wheel at the contact point (parallel to the surface), then the...

I am studying complex numbers and, hard as I try, I cannot see great difference between them and the conjugate numbers known and used since 500 B.C. (http://en.wikipedia.org/wiki/Quadratic_formula#Historical_development) to solve a quadratic equation p/2 \pm \sqrt(p/2 ^2\pm q) where the sum...

hey, So i need a formula that will help me calculate the torque required to run 2 wheels that support a certain weight. The things i know are follows: Total weight of the vehicle: 650-700kgs Wheel Diameter: 16-17 inches Average Velocity i will require the vehicle to move at: 10m/s...

Which statement concerning a wheel undergoing rolling motion is true (a) The angular acceleration of the wheel must be zero m/s2. (b) The tangential velocity is the same for all points on the wheel. (c) The linear velocity for all points on the rim of the wheel is non-zero. (d) The tangential...

Looks pretty awesome! Any thoughts from a engineering standpoint? Could it revolutionize biking? https://www.youtube.com/watch?v=S10GMfG2NMY

Hi Im thinking of constructing a millwheel with flat fins to run in a stream. Is there a formula i can use to calculate the most efficient ∅ to construct it , when taking into account the velocity and area the stream and the surface area of the fins when submerged. and their relevant angles...

A wheel spinning clockwise on its axis at with angular velocity ω0 drops to the horizontal ground. It initially has no center-of-mass velocity. The coefficient of kinetic friction between the ground and the barrel is µ. The radius of the wheel is R, and it is a solid disc of mass M. Express your...

I know that the physics community generally hates this kind of question, though I don't know why. Like Richard Feynman said, you can tell an expert by his reluctance to answer honest but naive questions. Okay, I understand that a wheel and axel can be viewed as a lever system with the fulcrum at...

1. A wheel rolls down a flat inclined surface that makes an angle $\alpha$ with the horizontal. The wheel is constrained so that its plane is always perpendicular to the inclined plane, but it may rotate about the axis normal to the surface. Obtain the solution for two-dimensional motion of the...

Why the steering wheel comes back to its main position automatically to some extent after the car has been turned...??

Homework Statement A Ferris wheel has a radius of radius of 15.0 m. It rotates at a constant angular speed, and makes one full revolution in 25.0 s. Calculate the apparent weight of a rider (mass = 60 kg) when at the bottom of the wheel. r=15 T=25s v=(2*pi*15)/25 a=((2*pi*15)/25)^2/15...

Hi all, I am trying to select a motor for a project that will have enough torque to operate the steering wheel of a golf cart. I'm trying to avoid over design as I want to be as economical as possible. The problem that I am having lies in determining the torque that is required to move the...

the calculation is mine however, if ans is correct not sure what the conventional way would to set this up?

My textbook says that if you are on a ferris wheel that is rotating, the total work done by all the forces acting on your is zero. How is that possible? You are moving so isn't work being done to you?

Homework Statement A wheel of radius R=50cm rolls along the ground with velocity V=2m/s. A pebble released on top of the wheel so that it is instantaneously at rest on the wheel. The co-efficient of friction between wheel and pebble is μ=1. The pebble starts to slide down when it has rotated...

I have a simple problem with a simple solution - but i can't figure out how to do it. Help would be greatly appreciated! Basically I have a 2x4. on this 2x4, i want to put a spinning 1" ball (or wheel) that will allow things to roll on it. BUT i want the ball to have a spring behind it...

Recently I heard about using exercise bikes to generate electricity. It is more or less like a bi-cycle fixed in a training stand. They convert the rotation of the wheel into electrical energy. The scenario is that they take some W watt of power from that model. In their case a disc like...

Hi All! I've been doing some research in an attempt to uncover the proportionality between usable traction, which is defined as the the product of coefficient of static friction and the normal force, and the wheel slip. Given the nature of the the equation for usable traction, I expected that...

Homework Statement Two engineers are working together in a competition to launch a pumpkin as high as possible using a launching device that must be kept within a certain height. Since the engineers have a height restriction, they want to accelerate the pumpkin to a large speed before...

Homework Statement Hello I need to find a an equation that describes the rundown of a wheel as function of the time. The wheel is running at an constant speed and is then disconnected and runs down to standstill. We know what the angular velocity of the wheel is at time 0, Wm. We know...

I have a conceptual issue with wheel friction that has been bothering me for a while. Consider the wheels on a car set to cruise control such that they rotate with constant angular velocity. Neither the wheel nor the ground are deformable (so we can ignore rolling friction) and the wheels slip...

Freight train is more efficient than truck due to lower rolling resistance. And I wonder which one has lower rolling resistance, small diameter or larger one or it doesn't not depend on diameter at all? Both are steel wheel on steel rail.

Hi You'all, Newbie here so no calculus or polysyllabics on the first date please. If I hold a bicycle wheel horizontally and spin it at the north pole, the torque from the Earth spinning and the torque from the bicycle wheel are along the same axis. Does this mean the wheel could float off...

Homework Statement Hello, I have difficulty understanding a problem on a practise mechanical aptitude test. I have a uploaded a photo of the question in case I am looking at it improperly. from what I understand, A and B are both making the same amount of rotations per minute, but A has to...

i was studying about four wheel drive/ all wheel drive and while studying about it i was just wondering how does your vehicle decide, to which wheel power should be transmitted more and to which one the power should be reduced, while cornering or while whee skidds.

Homework Statement The balance wheel of a watch is a thin ring of radius 0.95 cm and oscillates with a frequency of 3.10 Hz. If a torque of 1.1x10-5 Nm causes the wheel to rotate 45°, calculate the mass of the balance wheel. Homework Equations I=mr2 T=(2π)sqrt(I/mgh) τ=-Kθ The...

Imagine that we have a wheel spinning with the axis of rotation normal to the Earth's surface. For convenience, let's assume that the wheel is located somewhere in the north hemisphere. According to the definition of the Coriolis force, every little particle dm of the wheel has a coriolis...

As titled: When moving at a constant velocity, say drag force is the only resistive force, don't we want to amplify the force output? why would we want to use a larger gear for the paddle than the rear wheel's? I understand that we will need to paddle faster with a larger gear output...

Homework Statement An object of mass 2 kg is held in circular motion by a string of negligible mass. Initially the radius is 1 m and the tangential velocity is 4 m/s. The string is subsequently let out gradually until the radius doubles to 2 m. There are no frictional or resistive forces...

So, torque is given by I (moment of inertia) x angular acceleration. Let's say that the wheel is a hollow cylinder so the M.O.I is mr^2, I think. If a torque, T is applied to the wheel and there is a frictional force acting on the wheel, calculate the angular acceleration. Well, T - r(F) = I x a...

The Wheel of Time was heavily influenced by LotR, but it's unique enough to stand on it's own. Which do you prefer?

In the diagram attached, a force acts tangentially on the edge of a wheel. To make things easier, the wheel is massless, so moment of inertia doesn't need to be taken into account. However there is a concentrated mass M at the axle(It could be taken as the mass of the axle). Two equal but...

Homework Statement There is a small block of steel with mass 2.4kg and is firmly attached to a low mass wheel a distance .3m from its center. The wheel is free to rotate about a vertical axis and is at rest. A .0023kg bullet traveling with an initial speed of 305m/s in the horizontal plane...

Homework Statement Starting from rest, a ferris wheel of diameter 30.0m undergoes an angular acceleration of 0.040 rad/s^2. A certain rider is at the lowest point of the wheel just as it starts to move. a)find the velocity of the rider just as he completes a quarter of a turn. b)find the...

Homework Statement There is 14 kg of mass kept on a chassis (consider chassis weightless). Chassis is having 2 identical rear wheels and 2 Steel caster ball wheels at front. Consider the weight distribution to be equal on each of the wheel. All wheels are coupled to a DC motor-gearbox (1:1)...

Homework Statement A mouse of mass m runs around the inner circumference of a vertical wheel which is free to rotate about the centre. The wheel has mass M and moment of inertia I. Let θ be the angle that the radius vector makes to the mouse from the downward vertical at time t. Write down the...

Hello Guys i'm constructing some cart with conveyor on it weight of cart with conveyor is 300kg cart has 4 wheels i need to know if one person could move it, or i need to make it lighter how can i to calculate the force than person needs to move this cart? does radius of the wheels...

One of the classical consequences of relativity is that if someone travels far away from Earth and comes back, he would have aged less than people here (acceleration and thus changing frames of reference being the reason.) So, why wouldn't this work also for shorter distances? If someone runs...

Homework Statement The cart has a velocity vc = 3.4 ft/sec to the right. Determine the angular speed N (positive if counterclockwise, negative if clockwise) of the wheel so that point A on the top of the rim has a velocity (a) equal to 3.4 ft/sec to the left, (b) equal to zero, and (c) equal...