Ramp Definition and 672 Threads

Homework Statement A block slides down a slope from point O with initial speed V. THe sliding coefficient, mu, brings the block to rest at time T. Using the ramp as the x-axis and the perpendicular as the y-axis, find T. Homework Equations F = ma mu = mg sin(theta) a=dv/dt The...

Homework Statement A skateboarder, starting from rest, rolls down a 11.9-m ramp. When she arrives at the bottom of the ramp her speed is 6.77 m/s. (a) Determine the magnitude of her acceleration, assumed to be constant. (b) If the ramp is inclined at 29.8 ° with respect to the ground, what is...

Homework Statement An object approaches the bottom of a ramp, point A. It goes up the ramp and turns around at point B, which is 40.0 m above A. The ramp makes an angle of 30.0 degrees with the horizontal. What is the speed of the object at point A? Neglect friction. Homework Equations...

[SOLVED] Projectile Motion - Ramp Angle Good evening everyone! Homework Statement This is a classic ramp angle question. I am trying to find the angle of a ramp in order for a bus to complete the gap (Yes, this is from the film Speed, and I have searched, but haven't found a solution.) Known...

Hello everyone, I am attempted to calculate the top speed of a robot on ramp, given a specific gear ratio and ramp angle. I have attached an excel spreadsheet with all the given information, equations, and logical steps. The final numbers do not seem right when the gear ratio is varied...

Homework Statement "At the base of a hill (blah blah) there is a ramp inclined with an angle of 30 degrees and has a surface with a coefficient of friction of 1.5. How long should this ramp be to be able to stop a 80,000lb truck traveling at 80 mph" Homework Equations (delta)K + (delta)U...

Homework Statement A 500-g block is released from rest and slides down a frictionless track that begins 2.00 m above the horizontal as shown in the figure. At the bottom of the track, where the surface is horizontal, the block strikes and sticks to a light spring with a constant of 20...

1. Homework Statement A box (mass = 50.0 kg) is being pulled up a ramp at an angle of (27 ⁰) by a horizontal force, (F→). Given that the coefficient of kinetic friction for the ramp is 0.3, find the force, (F→) on the box. What is the reaction force on the box due to the tramp...

Homework Statement A box (mass = 50.0 kg) is being pulled up a ramp at an angle of (27 ⁰) by a horizontal force, (F→). Given that the coefficient of kinetic friction for the ramp is 0.3, find the force, (F→) on the box. What is the reaction force on the box due to the tramp? (Identify...

Homework Statement The path that a block slides along is frictionless until the block reaches the section L shown in the figure below. The length L = 0.75 m begins at height h = 2.0 m on a ramp of angle θ = 30º. In that section, the coefficient of kinetic friction is 0.40. The block...

1. I'm doing a lab with a coffee can rolling down a ramp. I'm asked to 'determine average torque' acting on the can while its rolling down the ramp. Then I'm asked to compare this value with I*alpha (angular acceleration) (I'm guessing because torque = I*alpha). So I need to calculate torque...

[SOLVED] Cart on an inclined ramp, with rebound A 500 g cart is released from rest 1.0 m from the bottom of a frictionless, 30° ramp. The cart rolls down the ramp and bounces off a rubber block at the bottom. The figure (below) shows the force during the collision. After the cart bounces...

Homework Statement If I have the horizontal range and a launch angle, how can I calculate the initial velocity of a metal ball if the vertical displacement is not zero? Homework Equations The Attempt at a Solution

Homework Statement A car accelerates at 1 m/s^2 up a ramp which makes an angle of 5 degrees with the horizontal. Ignoring friction and air resistance what fraction of the power the engine puts into the car's motion goes into the car's kinetic energy? Homework Equations The Attempt...

Someone Please Help - Ramp Launch And Friction ! 1. Homework Statement A 2.0 kg wood block is launched up a wooden ramp that is inclined at a 35* angle. The block’s initial speed is 10m/s. (Given that μk = 0.20) a. What vertical height does the block reach above its starting point? b...

Homework Statement Well i have a tiny question here a 2 kg mass starts at rest and slides down a 10 m high, 15 m long frictionless ramp. At the bottom of the ramp it reaches a flat surface where it hits and sticks to a stationary 3 kg mass . Find the final speed of the masses after...

Homework Statement A block starts from rest at a heigh of 8m on a fixed inclined plane. The acceleration of gravity is 9.8m/s^2. What is the speed of the block at the bottom of the ramp? Answer in units of m/s. Block mass = 4.5kg coefficient of friction = 0.19 Angle of incline = 29...

A 37 kg box slides down a 35 degree ramp with an acceleration of 1.35 m/s^2. The acceleration of gravity is 9.81 m/s^2. Find the coefficient of kinetic friction between the box and the ramp. Ff= MkFn 37 * 1.35 = 49.95 N Fgx = 49.95 sin 35 = 28.650143 Fgy = 49.95 cos 32 =...

Homework Statement A block M=2kg rests against a spring (K=2000n/m) compressed by 10cm. When released, the block is propelled up a rough(Mu-k=0.1) incline. What is the max height reached by the block? https://www.physicsforums.com/attachment.php?attachmentid=11412&stc=1&d=1193953938 Homework...

The Question is: A skier goes down a slope with an angle of 35 degrees relative to the horizontal. Her mass, including all equipment, is 70 kg. The coefficient of kinetic friction between her skies and the snow is 0.15. A. Please draw a free-body diagram of the skier. B. Calculate the net...

A factory worker accidentally releases a 230 kg crate that was being held at rest at the top of a ramp that is 4.3 m long and inclined at 40° to the horizontal. The coefficient of kinetic friction between the crate and the ramp, and between the crate and the horizontal factory floor, is 0.37...

Homework Statement A skateboarder starts up a 1.0 m high 30 degree ramp at a speed of 7.0 m/s. The skateboard wheels roll without friction. How far from the end of the ramp does the skateboarder touch down? The Attempt at a Solution ramp length= h=1sin30=1/2 length=2m v^2=vi^2+2ad...

Homework Statement A cart slides down an inclined ramp at is 1.44m long. The height of the ramp is .10m. The angle of incline of the ramp is not given. The work done by the friction is -.06. I need to find the friction force. Homework Equations Work done by the friction = Friction force * d...

Homework Statement A student pulls on a box up an incline of 10 degrees. The student pulls with a force of 180 N directed at 30 degrees above the line of the incline. The box has a mass of 28 kg, and the coefficient of friction between the box and floor is 0.299. The acceleration of gravity is...

Homework Statement A small block is placed at height h on a frictionless, 30 degree ramp. Upon being released, the block slides down the ramp and then falls 1.0m to the floor. A small hole is located 1.0m from the end of the ramp. From what height h shold the block be released in order to...

Homework Statement A large package weighing 517 N is accelerated across a gym floor at 3 m/sec^2 because it is being pushed at a force of 285 N at 50 degrees to the floor. What is the normal force of the package? What is the coefficient of sliding friction between the package and the floor...

For my High School physics class, we're doing a lab based on galileo's experiment. My question is how does the slope change with the ramp angle? I'm just confused with all the data points I have. So if anyone could help me, I'd be much obliged.

Homework Statement Two boxes with different masses M1 = 1.3 kg and M2 = 2.2 kg are tied together on a frictionless ramp surface which makes an angle = 29° with the horizontal (see the figure below). (the figure is essentially two boxes tied together by a rope and then another rope tying the...

Homework Statement A block of ice slides down a frictionless ramp at theta = 60 degrees while an ice worker pulls on the block (via a rope) with a constant force of 50.0 N. The block slides a distance d = 0.8m along the ramp and its kinetic energy increases by 128 J. (a) Calculate the work...

An 55.0-N crate of apples sits at rest on a ramp that runs from the ground to the bed of a truck. The ramp is inclined at 30.0° to the ground. I sketched the problem using a popular paint program. I seem to be having problems visualizing components of the normal force for some reason. I know...

Homework Statement In Fig. 6-48, block 1 of mass 1.8 kg and block 2 of mass 2.9 kg are connected by a string of negligible mass and are initially held in place. Block 2 is on a frictionless surface tilted at = 38o. The coefficient of kinetic friction between block 1 and the horizontal surface...

Homework Statement In Fig. 6-35, blocks A and B have weights of 51 N and 23 N, respectively. (a) Determine the minimum weight of block C to keep A from sliding if μs between A and the table is 0.23. (b) Block C suddenly is lifted off A. What is the acceleration of block A if μk between A and...

In Fig. 4-11, a ball is launched with a velocity of 8.50 m/s, at an angle of 50° to the horizontal. The launch point is at the base of a ramp of horizontal length d1 = 4.90 m and height d2 = 3.60 m. A plateau is located at the top of the ramp. Fig. 4-11 What is the magnitude of its...

Homework Statement -Find The DC voltage of the signal below created by the function generator -Find RMS Voltage -if the V waveform is applied across 1000 Ohm load what is the power dissipated in the load? http://www.imagedump.com/index.cgi?pick=get&tp=515966The wave form has axis symmetry...

Homework Statement A ramp is made by laying one end of a board on the level floor and the other end on top of a 4.0-foot-high wall, which is 8.0 horizontal feet away. A 3.0 foot-in-diameter ball is rolled under the ramp until it is wedged between the underside of the ramp and the floor. How...

I want to create a floating boat ramp for my dogs. The dogs weigh 50 and 75 lbs each. I have seen commercial ramps using floats to stablize and support the ramp while the dog walks up it. My question is if I make my own, how many pounds of buoyancy must the floats support in order to allow...

If I take a piece of 1/8" aluminum sheet that is 36" x 120" and bend each long side up 3" to create a ramp 120" long x 30" wide, How much weight would it support. My tenant has a power scooter and can't afford to purchase a ramp so I am looking for alternatives.

Centripetal Acceleration ! Homework Statement An Engineer wishes to design a curved exit ramp for a toll road in such a way that a car will not have to rely on friction to round the curve without skidding. He does so by banking the road in such a way that the force causing the centripetal...

Homework Statement A block of wood is sitting on an inclined plane. One end of the plane is rised until the wood block slides down. The wood block slides down when the plane has an angle of 30 degrees to the horizontal. What is the coefficient of friction? Homework Equations uFn=Ff...

Homework Statement A 9.0 kg box is sliding down a smooth flat ramp which makes an angle of 24 degrees with the horizontal. If the coefficient of kinetic friction (μ) between the box and the ramp is 0.25, how long will it take the box to slide 2.0 m down the ramp froma standing start...

Homework Statement A ring of mass 2.83 kg, inner radius 5.30 cm, and outer radius 6.95 cm rolls (without slipping) up an inclined plane that makes an angle of θ=37.4°, as shown in the figure below. http://capa.physics.mcmaster.ca/figures/sb/Graph11/sb-pic1106.png At the moment the ring...

Homework Statement You are designing a delivery ramp for crates containing exercise equipment. The crates weighing 1490 N will move at a speed of 2.10 m/s at the top of a ramp that slopes downward at an angle 25.0°. The ramp exerts a kinetic friction force of 540 N on each crate, and the...

Hello, I have a question for homework. The question reads: A body of mass m=4.8 kg is standing on a ramp inclined in an angle of α=12 degrees. The static friction coeficient between the ramp and the body is μ=0.24. The ramp, which is inclined to the left, is in a train, which accelerates to...

The title really says it all. Lets say i have a ramp, 1 meter long, that is at a 32 degree tilt. I place a ball on the top of the ramp and let if role down the ramp (no friction). 1. How long should it take for the ball to get near the bottem and 2. Since the ball is falling what is the ball's...

Hello all I have attcahed a WORD file that has a diagram that exlains the problem. When you open the file, you would see that I have a inclined part (called ramp) that pivots on a base. A ball (load) rolls up the ramp. The ramp is supported by a spring and some linkage. The linkage shown is...

Homework Statement A 200g block is pushed against a horizontal spring of constant 200 N/m until it is compressed 15cm. When the mass loses contact with the spring it moves over a horizontal rough patch of surface of length 50cm and coefficient of friction 0.2. After passing this patch the block...

Homework Statement Basically i have been given a set of data to analyse. The data was collected by rolling a ball of a ramp. The ramp is set on a table and the edge of the ramp is parralel to the table. The ball then travels through the air until it hits a piece of carbon paper. The vertical...

Homework Statement The teacher screwed up and gave us a problem that he could not solve. I am trying to solve it for fun. A roller coaster has a cosine shape. The coaster starts at the top (0 pi) with near 0 velocity Friction is 0, and there is no air resistance. Homework Equations...

Homework Statement A .2kg block from rest slides down a frictionless ramp that is .5 meters long. The block lands on a flat surface and moves towards another block that is 1.4 meters away. The other block is not moving and it has a mass of .8kg. The Miu (sp?) of the flat surface is .1...

I was wondering what rolls down a ramp faster - a tube (capped) full of dirt of a tube full with water. So i tried it and found that the water rolled faster -when it's mass was less then dirts mass and also when it was more. i thought of two reasons for this: 1) the water doesn't spin around...