Incline plane Definition and 143 Threads

Homework Statement http://postimage.org/image/gprwhko37/ Could someone check my work to make sure I'm doing this problem correctly? Where: s : hypotenuse or distance h : height uk : coef friction Homework Equations W = F*D Force Normal = mgcosθ Wfriction = (uk * N) *...

You slide a box of books at constant speed up a 30^\circ ramp, applying a force of 210N directed up the slope. The coefficient of sliding friction is 0.18. 1. How much work have you done when the box has risen 2m vertically? 2.What is the mass of the box? I think I could solve...

Homework Statement a skier starts on a hills inclined 15 degrees and the speed of the skier on the bottom of the hill is 15m/s what is the length of the hill? and how long did it take to reach the end of the hill Homework Equations gsintheta , a^2+b^2 + c^2 sin=o/h The Attempt...

1. A block of mass 4.0 kg is released from rest at the top of a frictionless incline shaped as a quarter-circle of radius r. At the bottom of the incline, the block slides along a rough horizontal surface, experiencing frictional force of 5 N. The block comes to rest after sliding a distance of...

Hello everyone I am a newbie as well as in physics. I am having a problem in a question as in the attachment. I have learned that the equation of the static friction (Fs) of an object is equals to the product of the coefficient to the normal force of the object. In this question, let mass of...

Homework Statement See attachment (1) what's forces act on pulley ? Find direction and magnitude Homework Equations F=ma The Attempt at a Solution After we find tension in robe , See attachment (2) what do we work ? Must decomposes tension to horizontal and vertical...

Homework Statement A block with initial velocity of 10 m/s is sent up an incline at 30 degrees from the horizontal. The coefficient of friction is 0.2x where x is the displacement. Find the maximum distance the block moves up the incline. Homework Equations F = ma (1/2)mv^2 mgh The...

I understand all the concepts, the only thing I don't know is were does Yc=hc/sin 60 comes from. Im kind of visual, if you could upload how you do it, it would help

Homework Statement an object is traveling 30 m/s up a 30 degree incline with height of 20, (there is zero friction) how far did it go? Homework Equations no idea The Attempt at a Solution stuck

Homework Statement Find all of the forces acting on the sphere. The problem must be solved in variables. A sphere, mass m, is resting on an incline plane at θ relative to the horizontal. The sphere is also resting against a perpendicular wall relative to the horizontal. Gravity = g.Homework...

Homework Statement A skier skiing downhill reaches the bottom of a hollow with a velocity of 20m/s, and then coasts up a hill with a 10° slope. If the coefficient of kinetic friction is 0.10, how far up the slope will she travel before she stops? Homework Equations aΔt=v2-v1 d= 1/2(v1 +...

A 2.00 kg block is held in equilibrium on an incline of angle θ = 55° by a horizontal force, F. If the coefficient of static friction between block and incline is µ s = 0.300, determine (a) the minimum value of F and (b) the normal force of the incline on the block. F = ma Mu = Ff/Fn...

Homework Statement Find the force necessary to start the crate moving, given that the mass of the crate is 32 and the coefficient of static friction between the crate and the floor is 0.58. The angle is 21 degrees below horizontal. Homework Equations The Attempt at a Solution I don't...

Homework Statement Find the force and acceleration of the block down the inclined plane Homework Equations F = ma The Attempt at a Solution We have two unknowns in F = ma I know there is the gravitational force going straight down, and there is the normal force that is...

Question says: A person is pulling on a block of mass m with a force equal to its weight directed 30° above the horizontal plane across a rough surface, generating a friction f on the block. If the person is now pushing downward on the block with the same force 30° above the horizontal plane...

Homework Statement A 11 kg box slides 4.0 m down the frictionless ramp shown in the figure , then collides with a spring whose spring constant is 190 N/m. The angle of the ramp is 30°. What is the maximum compression of the spring? Homework Equations Ei=mgh Ef=1/2kx^2 The Attempt...

Here's my scenario...I ran these calculations and I feel they are off due to my velocity values. I have a washer rolling down an incline plane set at 10°. The Length of the Plane is still unknown. Starting at rest, determine the velocity at 2". At this distance a camera with take a...

In physics class, we always assumed both theta's. Can someone prove to me why the angle for gravity is the same as the angle of the inclined plane? I can clearly see that triangles could be created and visually they look similar, but obviously that isn't enough. Image is in the attachment...

I've tried a few times on this problem but I can't get the right answer... A box with mass m=1,05 kg slides down a ramp with angle=42.39°. Kinetic friction μ=0,1646 between the ramp and the box. It starts from rest. g=9,806m/s². The box hit's a spring with: k=792 N/m after sliding the...

Homework Statement A block is resting on a wooden plank. On one end of the plank is a hinge so the other end my be lifted to create and angle θ with respect to the horizontal. The plank has a coefficient of static friction of μs. Using the sum of forces along the plank. Find the angle at which...

Homework Statement A hanging mass, M1 = 0.493 kg, is attached by a light string that runs over a friction-less pulley to a mass M2 =1.81 kg that is initially at rest on a friction-less ramp. The ramp is at angle 30.5 above horizontal. Find the magnitude and direction of the acceleration, a2...

Homework Statement In the diagram below find the 1) acceleration of the system 2) T1 and T2 The ramp is angled 35degrees to the horizontal and coeff of friction is 0.15 Homework Equations The image at the top is the problem's figure...

1. A body with mass m = 5 kg and initial velocity = 5 m/s moves along a horizontal plane with length 10 m, where the friction coefficient is μ=0.1, After passing the part with friction, the body moves up along a tilted plane which has no friction. What is the maximum height of body elevation...

Homework Statement A cord connected at one end to a block which can slide on an inclined plane has its other end wrapped around a cylinder resting in a depression at the top of the plane as shown in the figure. Determine the speed of the block after it has traveled 1.70 m along the plane...

Homework Statement The assignment is for a lab, we were to take an incline plane, and push a cart up the plane and measure the acceleration (using software). We need to use the difference in the accelerations (when the cart is moving up the plane and then back down) to find of the force of...

Homework Statement I'm having a lot of trouble trying to figure out this problem, any help would be great. The coefficient of static friction between a 3 Kg box and a 35 degree incline ramp is 0.3. What minimum force F perpendicular to the incline must be applied to the box to...

I need to find the coeffcient of friction on an incline plane. I need the equation to find the coefficient for any givien angle. It part of a lab where I'm required to create the procedure and am stuck with how to create the equation. We can use a protractor or trigonomic functions to find the...

Need help with Incline Plane Problem! Homework Statement A 10 kg block of ice slides down a ramp 20 m long, inclined at 10 degrees to the horizontal. a) If the ramp is frictionless, what is the acceleration of the block of ice? (I was able to do this question the answer is 1.7 m/s²) b) If...

Homework Statement A block of mass m1 = 4.50 kg on a frictionless inclined plane of angle 30.0° is connected by a cord over a massless, frictionless pulley to a second block of mass m2 = 2.80 kg hanging vertically. What is the magnitude of the acceleration of each block? Homework...

Hey, folks! I've been working on this one problem for the past little bit. It has been giving me a lot of trouble and I think i just need a pointer or two on how to go about solving it. http://i.imgur.com/nTGVz.jpg"Homework Statement It's not the best image, but it gives the basic idea. I...

Homework Statement A block of weight sits on a plane inclined at an angle \theta as shown. (Intro 1 figure) The coefficient of kinetic friction between the plane and the block is \mu. What is the work done by the applied force of magnitude ? Express your answer in terms of some or all of...

Homework Statement MP: 10.71 A 25 kg box slides 4.0 m down the frictionless ramp shown in the figure , then collides with a spring whose spring constant is 250 N/m. What is the maximum compression of the spring? ds=2.5m For what compression of the spring does the box have the maximum speed...

Homework Statement A motorcycle and 60.6 kg rider accelerate at 3.5 m/s2 up a ramp inclined 7.3° above the horizontal. What are the magnitude of (a) the net force on the rider and (b) the force on the rider from the motorcycle?Homework Equations F=ma Fg= mg 3. The Attempt at a Solution...

Homework Statement Homework Equations Sum of F=0The Attempt at a SolutionToo much work to put, but I pretty much know how to solve it, just need clarification. I almost got the right answer, was off by just a tad.

Homework Statement M1 and M2 are two masses connected as shown. The pulley is light (massless) and frictionless. Find the mass M1, given that M2 (3.5 kg) accelerates downwards at 2.77 m/s2, θ is 25o, and μk is 0.37. Homework Equations F = ma F = mg Ff = μkNThe Attempt at a Solution...

Homework Statement An Air Cart of mass m=10kg starts from rest on an inclined air track. It subsequently moves a distance of d=20m in a time t=4 sec along the track. There are two support legs that are a distance L= 20m apart. One of the legs is elevated to a height h=15m above the other...

Homework Statement A solid mass weighing 50 kg slides down an incline plane with the coefficient of kinetic friction being 0.05. The velocity is measured to be 2.00 m/s and 5.00 m/s at two points 15 m apart. What are the A) Magnitude and direction of all forces action on the solid mass B)...

Homework Statement A 63-kg person on skis is going down a hill sloped at 30° from the horizontal. The coefficient of friction between the skis and the snow is 0.20. What would be the magnitude of the acceleration? Homework Equations f=ma fg=mg fnet=mAnet Ff=μῦFn The Attempt at a...

Homework Statement A horizontal force of 100 N pushes a 17 kg block up a frictionless incline that makes an angle of 31° with the horizontal. Find the acceleration of the block. Homework Equations F = ma F_g = mg The Attempt at a Solution Cos31 = 100/(component of force along plane)...

[b]1. The problem statement, all variables and g object on an incline plane has a mass of 10 kgs and the coefficient of static friction is 0.35 at what angle does the object begin to slide. Homework Equations Fnet=ma Ff=sin(theta)(mg) The Attempt at a Solution I don't come close...

Homework Statement See attachment Homework Equations F=MA T=MA? The Attempt at a Solution M1: N1=M1gSin(32) T=M1gCos(32) Now does this work?: T=MA M1A=M1gCos(32) and that would give me the acceleration for the X-axis and i could do the same for the Y-axis and get the...

This is not a homework question but rather a real life problem I need to work through. Sorry if I have used incorrect terms but I have not done any physics in 10 years and have forgotten everything so I was hoping someone would be able to help. Homework Statement How much effort would it take...

Homework Statement A block of mass m = 15.0kg starts from rest and slides down an incline plane with slope angle theta = 45 degrees for a distance d1. It then reaches the flat surface and travels for a distance d2, where it comes to rest. The coefficient of kinetic friction between the block...

Homework Statement A snowball rolls off a roll that has a slope of 30* from the horizontal with a speed of 5.0 m/s. The edge of the roof is 10m above the ground. How far from the house (horizontally) does the snowball strike the ground? Homework Equations I'm using one of the...

Homework Statement http://img687.imageshack.us/img687/8417/screenhunter002.jpg Homework Equations I don't know. The Attempt at a Solution I don't even know where to begin...

Homework Statement A suspended 2.87 kg mass is moving up, a 1.5 kg mass slides down the ramp, a suspended 8.4 kg mass on the left is moving down. There is friction between the block and the ramp. The acceleration of gravity is 9.8 m/s2 . The pulleys are massless and frictionless. Find the...

Homework Statement A box of textbooks of mass 26.0 kg rests on a loading ramp that makes an angle \alpha with the horizontal. The coefficient of kinetic friction is 0.240 and the coefficient of static friction is 0.360. As the angle \alpha is increased, find the minimum angle at which the...

Frictionless incline plane homework help! Homework Statement An object is on a frictionless inclined plane. The plane is inclined at an angle of 78.0 degrees with the horizontal. Using the accerlation due gravity from your reference table. What is the magnitude of object's acceleration...

Ok, so in the red box it says that the tension is obtained from the horizontal dimension. This seems very wrong to me. Could someone explain this to me? Isn't there tension in the vertical dimension? Homework Statement http://img27.imageshack.us/img27/9276/inclineplanesolution.jpg

A 3kg block starts from rest at the top of a 30degree incline and slides a distance of 2m down the incline in 1.5s find the magnitude of the acceleration. I have always though to find the acceleration you can just use x/(t*t) but i use this formula but i couldn't get the same as the book. is...