Ramp Definition and 687 Threads

Homework Statement If a ball is dropped down a ramp of any shape, will the acceleration always be 9.8 assuming there is no friction. Homework Equations I know you can use mgh = 1/2mv^2 to solve for velocity, but can you use vf^2 = vi^2 + 2(a)(d) The Attempt at a Solution If you use both...

Mentors Note: Posts from a duplicate thread have been merged into this one. Hello, please explain the following in detail. I am a learning assistant (LA) at a major university but am stuck explaining a concept to my students. Does mass have an impact on an inclined plane? A cart with wheels or...

Question statement A 55g ice cube can slide without friction up and down a 25∘slope. The ice cube is pressed against a spring at the bottom of the slope, compressing the spring 10cm . The spring constant is 25N/m. When the ice cube is released, what distance will it travel up the slope before...

Homework Statement A ski starts from rest and slides down a 28∘ incline 65m long. If the coefficient of friction is 0.090, what is the ski's speed at the base of the incline? If the snow is level at the foot of the incline and has the same coefficient of friction, how far will the ski travel...

Homework Statement You are passing a construction site on the way to physics class, and stop to watch for a while. The construction workers appear to be going on a coffee break, and have left a large concrete block resting at the top of a wooden ramp connecting one of the building's upper...

Homework Statement A 500lb box is being pushed up a ramp which is sloped at 10 deg. The center of mass of the box is at the geometric center of the shown area. If the static coefficient of friction is 0.35 and the kinetic coefficient of friction is 0.28, what is the force P that will cause the...

Homework Statement Crash Test Craig drives his 800kg car up a 100m ramp that is at an angle of 35 degrees above the horizontal. The car exerts a forward force of 12000N and the force of friction between the ramp and the car is 20N. He is trying to jump over a series of spinning helicopter...

A 90 kg box is pushed by a horizontal force F at constant speed up a ramp inclined at 28°, as shown. Determine the magnitude of the applied force. a. when the ramp is frictionless. b) when the coefficient of kinetic friction is 0.18. Fnet = ma Fg= mg Ff=uk(Fn) a) With upwards and right as...

Hi, i am new to Laplace transforms/Algebra. I have been given a worked example by lecture to calculate the Laplace transform for a ramped input into a single pole RC high pass filter. i have managed to calculate the Laplace for the Ramp and the Laplace for the Filter. however i can't figure out...

Homework Statement A block with mass m rests on a smooth, frictionless ramp with mass M and height h. The ramp itself sits on a frictionless horizontal surface in which it is free to slide. The block slides smoothly down the ramp from rest. We want to find the speed of the block after it has...

Homework Statement We performed a lab to find an experimental value of gravity. I used a ramp with a height of 0.08 m, and the ramp was 1 m long. The ramp made an angel of approximately 4.59 degrees with the horizontal. We used software to calculate velocity with respect to time and position...

Homework Statement You are lowering two boxes, one on top of the other, down the ramp shown in the figure by pulling on a rope parallel to the surface of the ramp. Both boxes move together at a constant speed of 19.0cm/s . The coefficient of kinetic friction between the ramp and the lower box...

Homework Statement A block of mass M has a string of mass m attached to it. A force F is applied to the string and it pulls the block up a frictionless plane that is inclined at an angle theta. Find the force that the string exerts on the block Homework Equations F=ma The Attempt at a...

This is from a practice exam without an answer key. I tried the problem once before and am getting a different solution now. My method is solving for the time t when the x position is the width of ramp, and then evaluating y(t) to see if it is more or less than the height of the ramp. The...

Homework Statement A block of mass m is held in place on a ramp of mass M with a slope of angle θ, which in turn is held in place as shown in the figure below. The ramp is free to move on the surface beneath it. There is no friction anywhere. The block and the ramp are then released. Derive an...

Homework Statement A girl of mass mg = 50 kg is pulling a sled up a slippery slope. The coefficient of friction between the girl's boots and the slope is µs = 0.155; the friction between the sled and the slope is negligible. The girl can pull the sled up the slope with a ≤ amax = 0.030...

Hi there I am new to this site but I have been reading on it for a while. I have a question, I am building a loading ramp for my box truck to load my lawn mower in. it will be about 12 feet long and 6 feet wide I was wandering what size steel box tubing would be best used for this the...

Homework Statement Express the following signal in terms of ramp, exponential, and parabolic functions, where t should be consistently shifted Homework Equations signal simplification techniques, not known to me The Attempt at a Solution It seems you can express this in terms of...

Homework Statement An 80 kg object is on top of a 40°ramp and held by a box that is filled with sand bags. Each sand bag has a mass of 12 kg, the static friction coefficient between the box and the ramp is .507. What is the least amount of sand bags needed to prevent the object from sliding...

suppose you had a ball rolling down a ramp, without slipping and compare it to a ball that starts with a velocity u that is horizontally to the side. how would the time taken be different to reach the bottom?

Homework Statement Hello, An object moves at constant speed in a horizontal surface. Suddenly, a ramp comes along its way. The object starts to climb such ramp. Due to this, the object starts to lose speed. At certain distance, the object loses all of its speed. I want to calculate the value...

1. Here is the sketch: http://i.stack.imgur.com/0s1is.jpg The sketch is supposed to be side-view of the path of the object. The following values are known: - r - radius of the circle that describes the path AB of the object - a - angle that characterizes the part of a circle that...

This seems to be a slight variation of a pretty standard problem, however I didn't have any luck finding any seemingly helpful information. I am mainly wondering if I am not getting the FBDs correct? Homework Statement A block of mass m is sitting on a movable ramp of mass M with an incline...

Homework Statement I was really unsure as to where to post this problem as it's got nothing to do with homework, yet it's a homework like problem. Please let me know if I've posted it in the wrong sub-forum. It was a simple discussion at work where we debated how strong a winch we need...

Homework Statement Starting from rest, ahollow ball rolls down a ramp inclined at angle θ to the horizontal. Find an expression for its speed after it's gone a distance d along the incline. Homework Equations I for sphere = 2/5*M*R^2 The Attempt at a Solution I know we have to use...

Homework Statement A 3-kg block is moved up a 37° incline under the action of a constant horizontal force of 40 N. The coefficient of kinetic friction is .1, and the block is displaced 2 m up the incline. Calculate (a) the work done by the 40-N force, (b) the work done by gravity, (c) the work...

Inclined throw -- motorcycle jumps from the ramp Homework Statement The motorcycle jumps from the ramp. what is the minimum speed at the edge in order to reach the other side. Homework Equations Constant acceleration: V=-gt The Attempt at a Solution The time to reach height of 1.5 meters...

Homework Statement Which would be faster: A ball rolling down a ramp with no groove, or a ball rolling down a ramp with a groove? What effect does the radius have, if any? Disregarding resistance and whether or not the ball rolls in a straight line. Homework Equations The Attempt at a...

Ep = Ek mgh = Ek mgh = ½mv² v = √2gh As the collision is elastic, m1u1 + m2u2 = m1v1 + m2v2. It is known that m2 = 2m1. m√2gh = 2m1v2 v2 = (m√2gh)/2m v2 = (√2gh)/2 Force body diagram of m2: ̂̂̂̂̂̂Fnet = ma Fnet = Fn + Fg + Ff Fnet = Ff m2a = Ff a = Ff/m2 a = Ff/2m1 a =...

1. The problem statement, ramp. variables and given/known data A block with mass m=5kg is placed at position A and given an initial velocity Va=2m/s Down a frictionless circular ramp. Between positions B and C it travels over a flat rough surface having a coefficient of kinetic friction...

Are there any good sources to understand the physics behind a rolling sphere down an incline plane?

Problem: Block A is suspended from a vertical string. The string passes over a pulley and is attached to block B. The mass of block B is 1.8 kg. The mass of block C is 0.75 kg. If the coefficient of kinetic friction is 0.100 between block B and the ramp and the coefficient of static friction...

Homework Statement How many seconds does it take a marble to run down a ramp with a length of 5.0 m and an angle of 6.9°? Correct answer = 2.9 s. Homework Equations v = at d = 1/2at2 The Attempt at a Solution √2(5)/9.8≠2.9 s

Homework Statement In this problem, I'm rolling a ball off a ramp. The ramp is supposed to simulate a roof. The hypotenuse of the ramp is 1.5 meters and the angle is 45 degrees. The distance from the edge of the ramp to the ground is -5.43 meters. That is the information I'm given. From there...

Homework Statement A 5.0kg block slides down a ramp, starting with a velocity down the slope of 2.5 m/s. The ramp is 1.5 m high and has an angle of 25 degrees. The force of friction acting upon the block is 20.0 N. How much energy is transferred in or out by gravity, normal force, and...

"A 4.00-kg crate slides down a ramp. The ramp is 1.80 m in length and inclined at an angle of 28.0° as shown in the figure. The crate starts from rest at the top, experiences a constant friction force of magnitude 4.50 N, and continues to move a short distance on the horizontal floor after it...

Homework Statement The problem reads : You are riding your motorcycle one day down a wet street that slopes downward at an angle of 20 ∘ below the horizontal. As you start to ride down the hill, you notice a construction crew has dug a deep hole in the street at the bottom of the hill. A...

Solved it! Nope. -- Piano slipping down a ramp Homework Statement Two men loading a 900 kg piano onto a truck lose control and the piano slips, rolling down the loading ramp. The ramp is a 12 degree incline that is 3.2 m long. How long does it take the piano to reach the bottom of the ramp...

Homework Statement A 1130-kg car is held in place by a light cable on a very smooth (frictionless) ramp. The cable makes an angle of 31.0° above the surface of the ramp, and the ramp itself rises at 25.0° above the horizontal. a). Find the tension in the cable. b). How hard does...

Homework Statement A steel washer is suspended inside an empty shipping crate from a light string attached to th top of the crate. The crate slides down a long ramp that is inclined at an angle of 37° above the horizontal. The crate has mass 180kg. You are sitting inside (with a flashlight)...

Homework Statement ---Find Angular Speed--- Homework Equations I = 1/2 mR^2 Ug = mgdsinθ Us = 1/2 kd^2 KE = 1/2 I w^2 The Attempt at a Solution Moment of inertia of reel = 1/2mR2 Kinetic energy of the reel = 1/2 mv2 = 1/2(1/2mR2) w2 KE = mgdsinθ (potential due to gravity) +...

Homework Statement An object slides without friction down a ramp, from (xi, yi) to (xf, yf). What is the equation for the shape of the ramp connecting those two points which would enable the object to reach (xf, yf) in the shortest possible time? Also, describe the shape of the ramp. Homework...

I have a question regarding a friction experiment, so here's what I have so far: Homework Statement Calculate the approximate force of friction between the wheels of a cart and a ramp it is rolling on by only using the cart's mass and different values of acceleration up and down the ramp...

You have a cylinder rolling down a ramp, without slipping. There is a rope wrapped around it (pulling up) with tension T. The direction of friction is always up the ramp. How do I picture this? From the math, I know that it must be true. But I cannot really imagine it.

Homework Statement An object of mass m and initial speed v0 sliding on a horizontal frictionless surface encounters a frictionless ramp. To what vertical height will the object rise before coming to rest? Homework Equations .5mv^2 = .5mgh The Attempt at a Solution I used above...

Here is the link to the problem http://imgur.com/9Vnc5Er Alright, so I already know how to solve this problem, I am just struggling with the why. This is for my physics test, and he posts the answers to these in class assignments so we can review them. Looking at step 2, we are supposed to use...

I'm hoping someone here could help me with a problem I am having. I have an electronic sensor that measures tilt, and I put this sensor on a 10 degree ramp. The problem is that this portable ramp is put on surfaces that the levelness is unknown. It can vary up to +/- six degrees. The bottom of...

Homework Statement A person on a unicycle has a total weight of 900N. They need to climb to a height of one meter. If we build the ramp for a minimum pushing force of 50N, how long must the ramp be? m=91.7kg w=900N F1=50N Ry=1m Rx=? Rxy=? θ=? Homework Equations .5mv2=mgh F1=mgsinθ The...

I'm writing a lab that pertains to a running shoes motion down a ramp and calculating the coefficient of static and kinetic friction. We placed a running shoe on a ramp and increased the ramps angle of inclination until the shoe began moving down the ramp. 1.Is it correct for me to say that...

Homework Statement A student is skateboarding down a ramp that is 5.9 m long and inclined at 12° with respect to the horizontal. The initial speed of the skateboarder at the top of the ramp is 2.3 m/s. Neglect friction and find the speed at the bottom of the ramp. Homework Equations...