Cart Definition and 320 Threads

A 10 kg cart is pulled by a force of 14 Newtons for a distance of 6 meters, then by a force of 6 Newtons for 4 meters, then it is pushed (slowed down) by a force of 6 Newton for 1 meters. All this occurs on a horizontal surface. a) Initially assuming the surface to be frictionless, what net...

Alright so I just wrote an AP physics test and one of the true or false questions was: A horse pulls a cart and the cart pulls back on the horse with the same force. Does the cart move? (the cart starts at rest) I said false because in order for an object to move it needs a net force but...

Homework Statement http://img188.imageshack.us/img188/9897/73266226.png The problem is to create an equation to find the acceleration of the cart based upon theta. All that is given is the ball hanging is known as mass m. Homework Equations f=ma f=\frac{mv^{2}}{r} The Attempt at a...

Homework Statement Plot a displacement-time, velocity-time, and acceleration-time graph for a wheeled cart that rolls down an inclined plane. Already finished the displacement-time graph, but am questioning the correctness of the v-t and a-t graphs. What should they look like? (Like d-t...

Homework Statement A .5 kg cart moves on a horizontal surface. The graph of vx,t is attached a) Indicate all time cart is at rest b)indicate every time interval for which the speed is increasing c)determine the horizontal position of x of the car at t=9s if the cart is located at x=2 @...

Homework Statement Jill has just gotten out of her car in the grocery store parking lot. The parking lot is on a hill and is tilted 3 degrees. Fifty meters downhill from Jill, a little old lady let's go of a fully loaded shopping cart. The cart, with frictionless wheels, starts to roll...

In the diagram below, a cart is released from rest at a distance x1 from the first of two photogates. The cart then rolls down the ramp through both photogates. The distance between the photogates is x2. For this problem, you may assume that the cart is frictionless and the acceleration of the...

1. When a student exerts a force on a lab cart that is carrying some masses, the acceleration is 3.0 m/s2. If the force is tripled and exerted on the cart with a total mass of one half the original, then the acceleration will be 2. f=ma 3. do i just times 3.0m/s2 by three? or do i...

Homework Statement 125N of force are required to compress a spring by 1.04m. The cart rolls across the table at a constant speed. It then rolls up an inclined board and comes to rest. How high above the table is the cart when it stops? Homework Equations The Attempt at a Solution

Homework Statement 125N of force are required to compress a spring by 1.04m. The spring is now used to launch a 1.49 kg cart across a flat horizontal table. What is the speed of the cart? Homework Equations The Attempt at a Solution

Homework Statement A shopper pushes a 7.5 kg shopping cart up a 13 degree incline. Find the magnitude of the horizontal force needed to give the cart an acceleation of 1.41 m/s^2. Homework Equations F = m * a The Attempt at a Solution I am not sure how to set up the F(x) and...

The question and my work can be seen in the image below: http://img145.imageshack.us/img145/550/scan0001fgu.jpg The problem is that I am getting around 1 for acceleration, while the answer is 0.77. What am I doing wrong?

Homework Statement A roller coaster car on the frictionless track shown in the figure below starts from rest at height h. The track's valley and hill consist of circular-shaped segments of radius R. Find the formula for the maximum height h_max for the car to start so as to not fly off the...

Homework Statement A shopper in a supermarket pushes a cart with a force of 35.0 N directed at an angle of 28.0° downward from the horizontal. Find the work done by the shopper on the cart as he moves down an aisle 46.0 m long. What's going on? Homework Equations W = Force * displacementThe...

Homework Statement A 900 kg roller-coaster car is initially at the top of a rise, at point A. It then moves 165 ft, at an angle of 40.0° below the horizontal, to a lower point B. Choose the car at point B to be the zero configuration for gravitational potential energy of the roller...

Homework Statement A garden cart loaded with firewood is being pushed horizontally when it encounters a step 8cm high. The mass of the cart and the load is 55kg, and the cart is balanced so that its centre of mass is directly over the axle. The wheel diameter is 60cm. What is the minimum...

Homework Statement The two problems below are related to a cart of mass M = 500 kg going around a circular loop-the-loop of radius R = 9 m, as shown in the figures. Assume that friction can be ignored. Also assume that, in order for the cart to negotiate the loop safely, the normal force...

Homework Statement A massless spring of spring constant 20 N/m is placed between two carts. Cart 1 has a mass M1 = 5 kg and Cart 2 has a mass M2 = 3 kg. The carts are pushed toward one another until the spring is compressed a distance 1.3 m. The carts are then released and the spring pushes...

Newbee here, hope this is the place for this kind of question. I want to fab a cart that will carry about 200 lbs. It will be something I will stand behind, holding like a handlebar at waist height with a throttle. Gearing (chain and sprocket is what I'm thinking) would need to give a top...

Homework Statement A cart of mass 5 kg is attached to a block of mass 3 kg by a string that passes over a frictionless pulley. The system is initially at rest and we will assume that friction can be ignored. The block falls a distance of 1 m. What is the work done on the cart by the string...

Homework Statement I feel silly posting such a simple problem, but a substantial amount of thinking, Googling, and scouring these forums has not yielded an answer. Homework Equations Newton's Second Law: F*_net = ma* (where the asterisk denotes a vector quantity) Newton's Third Law...

Please help; I think my professor might be wrong, A cart travels toward an inelastic barrier at a constant speed v. On the cart is a pendulum that is not oscillating before the collision. (It is hanging straight down and traveling at the same speed as the cart.) The cart then collides...

Homework Statement A block of mass 1.4 kg rests on a cart of 3.4 kg. The static friction between them is (mew) =.79 What is the maximum acceleration in m/s^2 the cart can undergo over a frictionless surface before the block begins to slide? Homework Equations F (subscript ap) = mew x g x (m1 +...

I have a 30000 lb cart with 8" steel wheels on a steel surface, that I need to pull and push out of a large oven. How would you go about determining the force required to pull the cart out of the oven?

So yes that's the question: In a cart explosions (where 2 carts with springs on the back are pushed together and let go) is the kinetic energy conserved? If not why? I can't find it in my textbook or on internet sites (things specifically related to cart explosions anyways) But attempting to...

Homework Statement Given the diagram shown, calculate the minimum value of h such that when the cart reaches point A, it is just about to fall off. R = 10m mass of cart = 158kg note: there is no friction in the entire system Homework Equations ΣFc = mac (note: Fc = centripetal force and ac =...

Previous threads on the subject have gone badly and/or have moved quickly and gone round in circles without really getting anywhere. The question is whether a cart with a propeller powered by the wheels (or vice versa) can move downwind faster than the wind. It has (supposedly) been...

A shopper pushes a 7.5kg shopping cart up a 13 degree incline. I need to find the force required to give the cart an acceleration of 1.41m\s\s up the incline. ive tried breaking the weight, force and acceleration into components but i just end up getting more confused...any help on...

Hello everyone, My teacher posted this question and I've been having problems solving it. Please help. Homework Statement 3 kids are standing on top of a cart. The cart is on top of a frictionless surface. The kids run WEST at a maximum of 10m/s. As such, the cart will be pushed in the...

Homework Statement http://www.physics.umd.edu/lecdem/outreach/QOTW/arch3/a046.htm According to the site, when a fan is blowing air into a sail, the entire cart system remains motionless. Why doesn't the following approach work: Since there are no net external forces acting on the entire...

1. Determining the relationship between initial speed of a cart (with magnets, aligned with and moving towards magnets on a wall) and the stopping distance from the wall) 2. Kinetic energy(Ke)=Magnetic potential energy(Mpe) Ke=mv^2/2 Mpe=km1m2/r mv^2/2=km1m2/r...

Homework Statement A simple pendulum of mass m = .28 kg and length L = .65 m is attached to a cart of mass M = 1.0 kg. The mass of the pendulum support is negligible. The cart can roll rreely on a horizontal surface. At t = 0, the pendulum bob is released from rest when the string makes...

I have a project to do for my Physics class in grade 11. I have to design and build a car that will move in a forward direction. The source of energy for this car must be a suspended mass. The mass can be anything that is located anywhere. The car cannot have any other source of energy. It also...

Homework Statement A block of mass mblock = 1.5 kg rests on a cart of mass mcart = 3.5 kg, which moves without friction on a horizontal surface. The coefficient of static friction between the block and the cart is µ = 0.7. The cart is accelerating to the right. a) What is the maximum...

Homework Statement A 478.0 g cart is released from rest 1.16 m from the bottom of a frictionless, 31.0° ramp. The cart rolls down the ramp and undergoes a collision with a rubber block at the bottom. After the cart bounces, how far does it roll back up the ramp if the maximum force applied is...

http://img339.imageshack.us/img339/5208/blockcartpulleyyb1.gif A cart of mass M1 = 3 kg is attached to a block of mass M2 = 4 kg by a string that passes over a frictionless pulley. The system is initially at rest and the table is frictionless. After the block has fallen a distance h = 0.8 m...

A 10 kg cart is pulled by a force of 12 Newtons for a distance of 7 meters, then by a force of 4 Newtons for 2 meters, then it is pushed (slowed down) by a force of 3 Newton for 1 meters. All this occurs on a horizontal surface. A)Initially assuming the surface to be frictionless, what net...

A cart of mass M1 = 2 kg is attached to a block of mass M2 = 3 kg by a string that passes over a frictionless pulley. The system is initially at rest and the table is frictionless. After the block has fallen a distance h = 0.7 m a) What is the work Wg done by gravity on the system? b) What is...

Homework Statement A 10-kg cart starts up an incline with a speed of 2 m/s and comes to rest 2.5 m up the incline. The total work done on the cart is: -20J, -12J, 12J, 20J, Impossible to calculate Homework Equations W = Fd W = Fdcos(theta) The Attempt at a Solution I'm not...

Homework Statement A 380 g model rocket is on a cart that is rolling to the right at a speed of 3.0 m/s. The rocket engine, when it is fired, exerts an 7.5 N thrust on the rocket. Your goal is to have the rocket pass through a small horizontal hoop that is 20 m above the launch point. At what...

Homework Statement A garden cart loaded with firewood is being pushed horizontally when it encounters a step 8.0 cm high, as shown in the figure. The mass of the cart and its load is 56 kg, and the cart is balanced so that its center of mass is directly over the axle. The wheel diameter is 60...

Homework Statement What type of motion is experienced by a cart rolling down an incline?Homework Equations m = Δy / Δx The Attempt at a SolutionI'm just looking for some confirmation. If an object is on an incline and there is no other force than gravity acting upon it, should the object...

Homework Statement A professor has to haul a cart down a ramp. The ramp has an angle of about 10 degrees and is about 5 meters long. His initial speed at the top of the ramp is 6 m/s, and the cart has a mass of about 95 kg. How hard does he have to pull on the cart so that at the bottom of the...

I have an idea for making a go cart with a in wheel motor, same idea as the volvo recharge: http://www.alt-energy.info/wp-content/uploads/2008/03/hiw_hybrid_infog_485.jpg My idea is to have electromagnetic "flaps" that can be turned on and off and i was wondering how i could turn them on and...

My name is Dain, and I'm wondering if someone would be able to help me, or point me in the right direction on designing a aerodynamic 3 wheeled billy cart. Once a year at my old home town of Beechwood in NSW, Australia, is a 5.6 km 2 person billy cart race down Pappinbarra Mountain...

Homework Statement A person pushes a 16.0-kg shopping cart at a constant velocity for a distance of 22.0 m. She pushes in a direction 29° below the horizontal. A 48.0 N frictional force opposes the motion of the cart. What is the magnitude of the force that the shopper exerts? Homework...

Having a problem with a gravity cart delivery system. The cart has (4) casters, (2) rigid & (2) swivel. They load the cart in with the swivel casters leading. The rack slopes down say 10-15 degrees (don't know the angle yet, will check today). The problem is the cart rubs on the side guide...

We rolled down a cart down a ramp with a tickertape. When the average velocities were calulated and they were used to calculate acceleration. But we got acceleration of like 0.6, 0.2m/s^2 etc... shouldn't it be 9.8m/s^2..?! When i graphed the average velocity and the line of best fit was...

We did a lab, where a cart was rolled down a ramp and a tickertape was attached to the cart as it rolled down. When the cart finished the course of rolling down, a line was drawn across the tape through every sixth dot to show that it is an interval of 0.10s. Then we had to make 3 graphs...

We did a lab, where a cart was rolled down a ramp and a tickertape was attached to the cart as it rolled down. When the cart finished the course of rolling down, a line was drawn across the tape through every sixth dot to show that it is an interval of 0.10s. Then we had to make 3 graphs...