A skier with mass 64.0 kg starts at rest at the top of an 842 m...
A skier with mass 64.0 kg starts at rest at the top of an 842 m long ski slope, which makes an angle 13.0 ∘ with the horizontal.
A typical coefficient of friction between skis and snow is 5.20×10−2.
skiers don't go straight down the hill- they zigzag back and forth. Even though they still end up at the bottom of the hill, they've lost more energy to friction because friction is a non-conservative force. Let's say due to zigzagging, our skier actually traverses a distance 3790 m going down the hill. What is her speed now? What is the amount of work done by friction as she goes down the hill?
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Need the exercise portion Hit the Ski Slopes EXAMPLE 5.8 GOAL Combine conservation of mechanical energy...
Need the exercise portion
Hit the Ski Slopes EXAMPLE 5.8 GOAL Combine conservation of mechanical energy with the work-energy theorem involving friction on a horizontal surface. h = 20.0 m у A skier starts PROBLEM from rest at the top of a frictionless incline of height (В С) 20.0 m, as in the figure. At the bottom of the incline, the skier The skier slides down the slope and onto a level surface, stopping after encounters a horizontal traveling a...
An 90 kg skier starts from rest at the top of a ski run. She quickly finds herself going fast down the icy (essentially frictionless) hill. At the base of the hill she is unable to stop. She skis across an icy deck, through the open doors of the ski lodge; across the concrete floor of the rental shop before coming to rest against the back wall of the shop. The height of the hill is 150m, the deck and...
H 11. A skier of mass 82 kg starts a downhill run from the top of a straight hill. The hill has a rough surface and has a length of 112 m. The top of the hill is 37.5 m above the lowest point. The speed of the skier at the top of the hill is - 183 and coefficient of kinetic friction between the skier's skis and the hill is 0.12. How fast is the skier moving at the...
- Problem Solving (40 points total, 10 points each) 12. A 75-kg skier stands at rest atop a hill. The coefficient of friction between the skis and snow is 0.06. The skier glides down the length of the hill to its bottom. What is the skier's velocity at the bottom of the hill? L = 32.5 m O = 40°
12. A 62 kg skier is moving at 6.5 m/s on frictionless horizontal snow-covered plateau when she encounters a rough patch 3.50 m long. The coefficient of kinetic friction between this patch and her skis is 0.30. After crossing the rough patch and returning to friction free snow, she skis down an icy frictionless hell 2.5 m high. A) How much work is done by friction in crossing the patch? B) How fast is the skier moving when she gets...
A skier (m=59.0 kg) starts sliding down from the top of a ski jump with negligible friction and takes off horizontally If h 6.90 m and D 10.4 m, find H. 1.08x101 m You arecprmec i 155-1271 Previous Tries Your receipt no. is 155-1271 o inetic energy as she reaches the ground. Use conservation of energy
Need the exercise portion
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