# What is Skiing: Definition and 28 Discussions

Skiing is a means of transport using skis to glide on snow. Variations of purpose include basic transport, a recreational activity, or a competitive winter sport. Many types of competitive skiing events are recognized by the International Olympic Committee (IOC), and the International Ski Federation (FIS).

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1. ### Physics Graph Word Problem -- Motion of a person skiing down a slope

I was able to do the first graph knowing that acceleration is 9.8 and my distance goes up by 10s (y-axis) and my time goes up by 1s (x-axis). For the other 3 graphs, I'm not sure where to begin because I don't know how to figure out my velocity
2. ### Biomechanics of Skiing: Balancing & Knee Forces

Hi Everyone! I am a physio and I'm currently working with some alpine ski athletes. I don't have a lot of experience with this sport, so I tried to understand some basics about the physics and biomechanics of the sport. (The athlete is in my practice for a knee injury). Looking at the picture...
3. ### Momentum and collisions homework help

I need help, I've been staring at this problem for over an hour and trying to find similar problems online with no luck. A 65 kg person is skiing down a hill. The skier's speed at the bottom is 15 m/s. If the skier hits a snowdrift and stops in .30s A)how far does the skier go into the drift...
4. ### Finding Touchdown Point Distance on a Slope with a Circular Arc and Ramp Launch

Homework Statement It's been a great day of new, frictionless snow. Julie starts at the top of the 60∘ slope shown in the figure (Figure 1) . At the bottom, a circular arc carries her through a 90∘ turn, and she then launches off a 3.0-m-high ramp. How far horizontally is her touchdown point...
5. ### What is the Correct Calculation for Sam's Speed at the Bottom of the Slope?

Homework Statement Sam, whose mass is 75 kg, stands at the top of a 12-m-high, 100-m-long snow-covered slope. His skis have a coefficient of kinetic friction on snow of 0.07. If he uses his poles to get started, then glides down, what is his speed at the bottom? Homework Equations v =...
6. ### Skiing Up a Slope: Solving Work & Power Requirements

Homework Statement A skier of mass 70 kg is pulled up a slope by a motor-drive cable. a. How much work is required to pull him 60 m up a 30° slope (assumed frictionless) at a constant speed of 2 m/s? b. What power must a motor have to perform this task? Help would be greatly appreciated...
7. ### An investigation on the factors affecting skiing

< Mentor Note -- thread moved to HH from the technical physics forums, so no HH Template is shown > Hello everybody! I am posting this in hopes of further guidance and help on a high school essay assignment. I am required to make an investigation with an experiment(s) that explores a certain...
8. ### Optimised Shin Guard for Slalom Skiing

Hello everyone, I'm a young alpine skier and looking for ways to be faster. Slalom guards haven't changed in form since over a decade! I want to make a shin guard that could decrease the impact of the slalom gate on your shins so it doesn't make you slower. I added some videos in slow motion...
9. ### What has this single dad been up to for the past 35 years?

Studied physics 35 years ago , been running Hang Gliding school ever since Major nerd with interest in anything and everything Single dad for past 15 years Love skiing and beer!?
10. ### Skier traveling uphill with and without friction

Homework Statement If the coefficient of kinetic friction in the previous problem was actually 0.11 and the slope 30 degrees, to the nearest meter how far up the hill does he go? **the problem prior was: A skier traveling at 31.9 m/s encounters a 12 degree slope. If you could ignore friction...
11. ### Skiing both ways conservation of energy/1D kinematic

skiing both ways...conservation of energy/1D kinematic Homework Statement A skier starts from rest at the top of a 45.0-m-high hill, skis down a 30° incline into a valley, and continues up a 40.0-m-high hill. The heights of both hills are measured from the valley floor. Assume that friction...
12. ### Skiing accident Prince Willem Friso

For all the royalists, the second son of Queen Beatrix, prince Willem Friso (engineer degree) has been in a skiing accident. He was caugh by an avalange during off track skiing in Austria. His vitals are stable but he had to be reanimated and his brains may have suffered lack of oxygen for a...
13. ### Question about physics and skiing

The angle of the cliff, the speed at take off, the resistance of impact( how much powder snow also if its ice), and the height. How much force will you hit the landing with, at what speed? etc Can someone create a problem for me? I want to fully understand the physics behind cliffs and skiing...
14. ### Skiing Up a Hill: Work Done by Friction

Homework Statement A 69.7-kg skier coasts up a snow-covered hill that makes an angle of 26.8° with the horizontal. The initial speed of the skier is 6.16 m/s. After coasting 1.98 m up the slope, the skier has a speed of 3.95 m/s. Calculate the work done by the kinetic frictional force that...
15. ### Energy-related problem involving skiing up a hill

Homework Statement A 68kg skier approaches the foot of a hill with a speed of 15m/s. The surface of the hill slopes up at 40 degrees above the horizontal and has the coefficients of static and kinetic friction of 0.75 and 0.25, respectively. Use energy conservation to find the maximum height...
16. ### What Determines the Terminal Speed of a Skier?

Homework Statement What is the terminal speed for an 85.0 kg skier going down a 44 degree snow-covered slope on wooden skis μ= 0.060? Assume the skier is 1.7m tall and .50m wideHomework Equations v = sqrt(4μmg/A) The Attempt at a Solution The area of the skier is (1.7m*.5m)=0.85m^2 sqrt...
17. ### How Much Horsepower is Needed for Skiers on a Rope Tow?

Homework Statement Physics and Skiers and Rope and Hills? A 80 kg skier grips a moving rope that is powered by an engine and is pulled at constant speed to the top of a 24 degrees hill. The skier is pulled a distance x= 200m along the incline and it takes 2.2 min to reach the top of the...
18. ### Easy Conservation of Energy (Skiing)

Two snow-covered peaks at elevations of 3500 m and 3400 m are separated by a valley. A ski-run having a total length of 3000 m extends from the top of the higher peak to the top of the lower one. A skier starts from rest on the higher peak. With what speed will the skier arrive at the topof...
19. ### Skiing Downhill: Calculating Woman's Height & Angle After Hitting Giant Snowball

Homework Statement A 70-kg woman skies down a slope and then encounters the top of a huge snowball of radius 5 m while she is moving at 3 m/s. She continues over the surface of the "ball" until she ultimately parts company from the "ball" at an angle (alpha) which is measured by the radial...
20. ### Solving Skiing Problems: Net Force, Speed & Free-Body Diagrams

Homework Statement 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...
21. ### Twiggy the Water Skiing Squirrel - OH REALLY?

Twiggy the Water Skiing Squirrel - OH REALLY? Ok, you've probably seen this, the squirrel which, supposedly, water skis. But to me, it looks like the damn thing is simply riding in a boat (made to look like a pair of water skis) which is being pulled by another boat. I find it annoying that...
22. ### Solving a Skiing Problem: Finding the Angle of Loss of Contact

Ok so the question is, "A skier of mass 60kg, initially at rest, slides down from the top of a frictionless, icy, hemispherical, mountain with a radius of curvature R of 100m. a)Draw a free body diagram and write the Newton's Equations at the moment when he/she is at some point below the...
23. ### Skiing down an incline problem

i have a question that pertains to skiing down an incline...i can do everything for it, but i have no idea how to get 11.8 degrees from: theta=sin^-1 (0.204) though. how would i know that 11.8 is the answer?
24. ### Skiing in 11 Degrees - A Wild Winter Adventure

So this is where I've been hiding all week. The first two days it was in the upper 50s and I skiied in a t-shirt under my ski jacket shell. On the 4the day (Wednesday), it was 11 at the top of the mountain and snowing. The snow was nice, but we couldn't see bcause it was snowing so hard...
25. ### When Does a Skier Lose Contact with a Snowball?

A skier starts at the top of a a very large frictionless snowball, with a very small initial speed, and skis straight down the side. At what point does she lose contact with the snowball and fly off at a tangent? That is, at the instant she loses contact with the snowball, what angle \theta...
26. ### Solving Two Skiing Problems: Speed and Friction

I'm having problems with the following two problems. Thank you for any help! 72) A skiier coasts down a very smooth 10-meter high slope. If the speed of the skiier on the top of the slope is 5.0m/s, what is his speed at the bottom of the slope? I calculated 2gy= v2 and plugged in v= sq root...
27. ### Why is it difficult to get up when starting water skiing?

Heylo, am doing a design project on water skiing and kinda need to know about the forces involved in pulling you up out of the water and why it makes it difficult to get up when you first start! can u put it in lamens terms tho- not so good at this stuff. :uhh: xxx
28. ### Velocity and Distance while skiing

I've encountered this one physics problem that I can't quit figure out: "While skiing, Ellen encounters an unexpected icy bump, which she leaves horizontally at 12.0 m/s. How far out, horizontally, from her starting point will Ellen land if she drops a distance of 7.00 m in the fall?" Can...