Ramp Definition and 672 Threads

Im studying for a test tomorrow and I'm doing a question, which someone posted the answers to on here in another topic i did it and got the wrong answer apparently can someone check and make sure I am not messing up? A pulley device is used to hurl projectiles from a ramp (mk = 0.26) as...

Homework Statement A 5 kg block is placed near the top of a frictionless ramp, which makes an angle of 30o degrees to the horizontal. A distance d = 1.3 m away from the block is an unstretched spring with k = 3000 N/m. The block slides down the ramp and compresses the spring. Find the...

Homework Statement A 100kg crate is pushed at a constant speed up a frictionless 30 degree inclined ramp. What constant horizontal force is required? what force is exerted on the crate by the ramp? Homework Equations Fg parallel= mgsin(theta), Fg Perpindicular=mgcos(theta), Constant...

Homework Statement A 5 kg block is placed near the top of a frictionless ramp, which makes an angle of 30o degrees to the horizontal. A distance d = 1.3 m away from the block is an unstretched spring with k = 3000 N/m. The block slides down the ramp and compresses the spring. Find the...

A man pulls a block of mass m = 20 kg up an incline at a slow constant velocity for a distance of d = 3.5 m. The incline makes an angle q = 29° with the horizontal. The coefficient of kinetic friction between the block and the inclined plane is µk = 0.3. a) What is the work Wm done by the man...

Homework Statement Moving a 150kg fridge a 12m ramp with a rise of 2.4m. the mover pulls the ridge up with a constant force of 710 N. the acceleration due to gravity is 9.8 m/s^2 Homework Equations W=Fs F=ma The Attempt at a Solution I found out the angle of the ramp was by...

Homework Statement You have taken a summer job at a warehouse and have designed a method to help get heavy packages up a 15º ramp. In your system a package is attached to a rope which runs parallel to the ramp and over a pulley at the top of the ramp. After passing over the pulley the other...

Homework Statement A block is sent sliding up a 50 degree ramp at an initial speed of 9m/s. The coefficient of kinetic friction between the ramp and the block is 0.51. Find the acceleration of the block.Homework Equations Fk = (Fn)uk F=maThe Attempt at a Solution umgsin50 = ma ugsin50 = a...

Homework Statement A hoop of mass m and radius R rolls without slipping down an inclined plane of mass M, which makes an angle \alpha with the horizontal. Find the Lagrange equations and the integrals of the motion if the plane can slide without friction along a horizontal surface. Homework...

Homework Statement They're two boxes on a ramp. Box 1 (on the bottom) is 8.60kg and has a coefficient of kinetic friction of .35 with an incline plane. Box 2 (on top of Box 1) is 1.3kg and has a coefficient of kinetic friction of .45 between the boxes. The two boxes are connected through a...

Homework Statement A student has two ramps, both of which are at an angle of 30o. Ramp 1 is frictionless and ramp 2 has friction. The student also has two blocks, one for each ramp. She pushes the blocks up the ramps with the same initial velocity. The block on ramp 2 only travels a...

Homework Statement When mass M is at the position shown, it is sliding down the inclined part of a slide at a speed of 2.15 m/s. The mass stops a distance S2 = 2.5 m along the level part of the slide. The distance S1 = 1.22 m and the angle θ = 32.70°. Calculate the coefficient of kinetic...

Homework Statement A ramp is set up so that one end is propped up with a few textbooks and the other end is continuous with the floor. You roll a marble down an incline and onto the floor. Compare the velocity of the marble down the incline with the velocity of the marble as it rolls onto the...

Homework Statement (Please check the attached file) a)What is the minimum speed he requires to make it to the ramp? b)What would be the best ramp angle so that the skateboarder lands as smoothly as possible? c)What is the skateboarder’s displacement vector, average velocity vector, and...

I have the solution to the problem but I don't get the part how you rotate the axes and then solve from there. For example in the x direction Fx = max +mg sin32 = max Fx = Force in x direction ax = acceleration in the x direction Can someone explain this?

Homework Statement The surfaces between a 11 kg block, the 16 kg wedge and between the 16 kg wedge and the horizontal plane are smooth (without friction). The acceleration of gravity is 9.8 m/s2 . A block is released on the inclined plane (top side of the wedge). What is the force F which...

I'm also working on this other question, which I think my instructor has a paradox in his algebra for lack of what to call it. Can anyone suggest a logical way to answer this question? Homework Statement http://media.wiley.com/product_data/excerpt/19/04717580/0471758019.pdf See problem #43 on...

Homework Statement A man pushes on a piano with mass 190 {\rm kg} so that it slides at constant velocity down a ramp that is inclined at 15.8^\circ above the horizontal floor. Neglect any friction acting on the piano. Calculate the magnitude of the force applied by the man if he pushes...

1. Homework Statement A block of mass m=1.62 kg slides down a frictionless surface (see below). The block is released at a height h=3.91 m from the bottom of the loop. Assume the bottom of the ramp indicated between the dashed lines in the diagram is a segment of a circle with R = 1.5m...

Homework Statement A block of mass m=1.62 kg slides down a frictionless surface (see below). The block is released at a height h=3.91 m from the bottom of the loop. Assume the bottom of the ramp indicated between the dashed lines in the diagram is a segment of a circle with R = 1.5m...

Acceleration down a frictionless ramp- what does ay represen in this case? I wish I could upload a picture or something, but I don't have a scanner! I'm looking at an object moving down a frictionless ramp; the main acceleration vector points straight down, ax of course is parallel to the...

Homework Statement This was actually a lab for class today. Basically, a marble rolls down a 2.26m slope, in 3.12s. Find the angle of the slope. Assume there is no friction.Homework Equations v=d/t a=v t a=g sin (theta)The Attempt at a Solution v=2.26/3.12 = 0.724m/s since that is Avg. V...

Hello! This is my first post so please forgive me if I'm doing this wrong. Thanks! http://img4.imageshack.us/img4/3922/godfdb.jpg Ok it has always stumbled me why we use the angle the ramp makes with the surface it rests on when resolve gravity into it's components I understand...

Homework Statement A solid sphere of uniform density (weight = 3.2 lbs starts from rest and rolls down a ramp (H = 1.57 m, q = 18.3°.) Find the speed of the sphere's CM when it reaches the bottom of the ramp. haha sorry bout that... Homework Equations see below The Attempt at a...

Homework Statement A 28.0 kg seal at an amusement park slides down a ramp into the pool below. The top of the ramp is 1.80 m higher than the surface of the water and the ramp is inclined at an angle of 30.0° above the horizontal. The seal reaches the water with a speed of 4.90 m/s. What...

You are designing a delivery ramp for crates containing exercise equipment. The crates weighing F_1 will move at a speed of v at the top of a ramp that slopes downward at an angle \phi. The ramp exerts a kinetic friction force of F_2 on each crate, and the maximum static friction force also has...

Homework Statement Does a perfect ball roll or slide down a perfectly frictionless ramp? Homework Equations The Attempt at a Solution Let P be the contact point of the ball with the ramp. Then it appears to me there is a torque (about the contact point, P) acting on the ball due...

Homework Statement A 20 kg mass is released, and the 5 kg mass on the ramp slides up the ramp from rest. As soon as the 5 kg mass gets to the end of the ramp, the string breaks down. What's the tension of the string? http://img10.imageshack.us/img10/7603/figure1w.th.jpg Homework...

Homework Statement A small block of mass m is held at the top of a rough quarter-circle ramp of radius R as shown in the figure, and then released from rest. When it reaches the bottom of the ramp, it is moving with speed V. How much work did friction do on the block from the top to the...

Homework Statement A skateboarder with total mass of 70kg starts from rest at the top of a ramp and accelerates down it. The ramp is 25m long and is at an angle of 20 degrees to the horizontal. The skateboarder has a velocity of 12.2m/s at the bottom of the ramp. Calculate i) the average...

Homework Statement Two blocks,connected by a string over a pulley, slide along the frictionless ramp shown in the diagram. What is the tension in the string? Homework Equations \sumF=ma The Attempt at a Solution so i set up an equation for each mass m1=3kg \frac{Fg1+Ft}{m1}=a...

Homework Statement A 5.0 kg case of bottled Spring water is released from rest down a shipping ramp inclined 25oto the horizontal. At the base of the ramp, oriented parallel to its surface, is a spring that can be compressed 2.0 cm by a force 260 N. The case of water moves down the ramp and...

Homework Statement What minimum speed does a 136.4 g puck need to make it to the top of a 3.31-m-long, 24° frictionless ramp? Homework Equations K=mV^2/2 U=mgY The Attempt at a Solution

A uniform 10 cm x 20 cm box is placed on a ramp that rises at angle theta above the horizontal. Assuming that there is enough friction to prevent this box from sliding, what is the largest that theta can be without tipping it over? do i use torque = r*F*sin*(theta), if so how do i use it?

Homework Statement A 2.37 kg wood block is launched up a wooden ramp that is inclined at a 35° angle. The block’s initial speed is 9.32 m/s. What vertical height does the block reach above its starting point? Homework Equations DYNAMICS 3. The Attempt at a Solution

1. A uniformly loaded crate of weight 1000N is held at rest on an inclined place. A gradually increasing force P is applied horizontally as shown. If coefficient of friction, u, = 0.2, determine whether the crate first slides or topples and the least force required I am unable to find the least...

Homework Statement what is the net force acting on a 1.6t car initially parked on a smooth icy road banked at 40o. (frictional forces are negligible) Homework Equations Fd=mgsin\theta The Attempt at a Solution I'm not too sure. 1600 x 9.8 x sin40 but it = the wrong number?? help!

Homework Statement A 2.0kg block of wood accelerates from rest down a smooth incline at 37o to the horizontal. It covers 1.26m in 1.0sec. Determine the frictional force acting. Homework Equations uhhh... this is the problem, I don't know what equation to use... The Attempt at a...

Difficult: Block sliding up moving ramp Homework Statement A block of mass m with initial velocity of v0 slides up up a ramp of angle \theta and mass M that is not pinned to the ground. It doesn't reach the top before sliding back down. What is the highest point that the block reaches in...

Homework Statement In Fig. 8-36, a runaway truck with failed brakes is moving downgrade at 130 km/h just before the driver steers the truck up a frictionless emergency escape ramp with an inclination of θ = 15°. The truck's mass is 1.2 x 104 kg. What minimum length L must the ramp have if the...

Homework Statement A 79 kg skier leaves the end of a ski-jump ramp with a velocity of 26 m/s directed 25° above the horizontal. Suppose that as a result of air drag the skier returns to the ground with a speed of 24 m/s, landing 18 m vertically below the end of the ramp. From the launch to...

Homework Statement A car is driving up a slope at angle 16 deg. to the horizontal, trying to accelerate as much as possible. The static and kinetic friction coefficients are .90 and .80, respectively. Find the maximum possible acceleration (assuming a sufficiently powerful engine).Homework...

You are trying to have your remote-controlled car leap off a ramp, which happens to be at a 20 degree incline to the ground. If the coefficients of static and kinetic friction are .70 and .50, repsectively, what is the maximum possible acceleration of the remote-controlled car up the ramp?

Homework Statement You are designing a delivery ramp for crates containing exercise equipment. The crates weighing 1470 N will move at a speed of 1.80 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...

Hi gang, I've been reading for a while and now need some help of my own. Thanks in advance. I'm currently planning a project where I'm going to demonstrate a launch of an RC car off the flat roof of a building. The height of the roof is 25'. I figure the RC car will go 25mph, and the ramp...

Homework Statement Starting from rest, a 5.0 kg block slides 2.5 m down a rough 30.0 degree incline in 2.0 seconds. Determine the following: a. work down by the force of gravity b. the mechanical energy lost due to friction c. the work done by the normal force between the block and the...

Homework Statement A block starts from rest at a height of 3.1 m on a fixed inclined plane. The acceleration of gravity is 9.8 m/s2 . If the block continues to slide on the ground with the same coefficient of friction, how far will the block slide on the ground until coming to rest? µ =...

I'm new to this forum so please don't mind my being a newbie. I found this equation at school, .5((90-theta)/90)*G=Ag where theta is the angle on the base (not the right angle) |\ | \ <ramp |_ \<Theta ^ right angle and G is the acceleration due and Ag is acceleration in the...

Homework Statement Suppose a box on a frictionless ramp is being pulled by a rope with a tension of 350 N making an angle of 50° to the horizontal ground. If the angle of incline of the ramp is 20°, and the box is pulled 5 m, determine the amount of work done. Hint: Draw a diagram and use...

Homework Statement A box with a mass of 22kg is at rest on a ramp inclined at 45 degrees to the horizontal. The coefficient of friction between the box and the ramp are mu static = 0.78 mu kinetic = 0.65. a) Determine the magnitude of the largest force that can be applied upward, parallel to...