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••28 A 40 kg skier skis directly down a frictionless slope angled at 10° to the...
A 63 kg skier skis directly down a frictionless slope angled at 20° to the horizontal....
A 63 kg skier skis directly down a frictionless slope angled at 20° to the horizontal. Assume the skier moves in the negative direction of an x axis along the slope. A wind force with component Fx acts on the skier. (Indicate the direction with the sign of your answer.) (a) What is Fx if the magnitude of the skier's velocity is constant? N (b) What is Fx if the magnitude of the skier's velocity is increasing at a rate...
A 49 kg skier skis directly down a frictionless slope angled at 11° to the horizontal....
A 49 kg skier skis directly down a frictionless slope angled at 11° to the horizontal. Choose the positive direction of the x axis to be downhill along the slope. A wind force with component Fx acts on the skier. What is Fx if the magnitude of the skier's velocity is (a) constant, (b) increasing at a rate of 1.4 m/s2, and (c) increasing at a rate of 2.8 m/s2. Use g = 9.81 m/s2.
A skier, starting from rest, skis at 100 m down a smooth, flat slope inclined at...
A skier, starting from rest, skis at 100 m down a smooth, flat slope inclined at 13 degrees. If the surface is frictionless what is the skier's final speed at the bottom?
A skier starts down a 28 ∘ slope. After a vertical drop of 35 m ,...
A skier starts down a 28 ∘ slope. After a vertical drop of 35 m , the slope temporarily levels out and then drops at 18 ∘ an additional 40 m vertically before leveling out again. The coefficient of kinetic friction on both slopes is 0.15, the level stretches is frictionless. a)What is the skier's speed on the higher level stretch? b)What is the skier's speed on the lower level stretch?
A 24-kg skier slides down a slope angled at 20 degrees relative to horizontal, with a...
A 24-kg skier slides down a slope angled at 20 degrees relative to horizontal, with a constant speed of 8.0 m/s. a) Draw and label a free body diagram for the skier. b) Find the magnitudes of all forces in your diagram
a skier starting from rest down a snow slope that makes 18 degrees with the horizontal....
a skier starting from rest down a snow slope that makes 18 degrees with the horizontal. He starts from the height of 8 m. at the bottom of the slope is a 9 m long rough horizontal surface. the acceleration slowing the skier down on the rough patch has a magnitude of .8m/s2. what is the skier's speed when he reaches the end of the rough patch? calculate the time intervals it takes the skier to reach the bottom of...
A skier is pulled by a tow rope up a frictionless ski slope that makes an...
A skier is pulled by a tow rope up a frictionless ski slope that makes an angle of 8.9° with the horizontal. The rope moves parallel to the slope with a constant speed of 1.1 m/s. The force of the rope does 640 J of work on the skier as the skier moves a distance of 5.9 m up the incline. (a) If the rope moved with a constant speed of 2.4 m/s, how much work would the force of...
on a frictionless table collides with a stationary 7. A 10 kg ball moving at a...
on a frictionless table collides with a stationary 7. A 10 kg ball moving at a velocity of 2 m/s 5 kg ball. Find the final velocity of each ball if the collision is inelastic? If the collision is elastic and the 10 kg ball comes to a complete stop, what is the final velocity of the second ball? 8. A woman stands at the center of a platform. She is holding a dumb-bell in each hand, and outstretched. The...
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...
Sam, whose mass is 75 kg, straps on his skis and starts down a 50-m-high, 20 ^\circ frictionless slope. A strong headwi...
Sam, whose mass is 75 kg, straps on his skis and starts down a 50-m-high, 20 ^\circ frictionless slope. A strong headwind exerts a horizontal force of 200 N on him as he skies. a)Find Sam's speed at the bottom using work and energy. b)Find Sam's speed at the bottom using Newton's laws. Thanks!
on a frictionless table collides with a stationary 7. A 10 kg ball moving at a velocity of 2 m/s 5 kg ball. Find the final velocity of each ball if the collision is inelastic? If the collision is elastic and the 10 kg ball comes to a complete stop, what is the final velocity of the second ball? 8. A woman stands at the center of a platform. She is holding a dumb-bell in each hand, and outstretched. The...
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...
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