Question

A resort uses a rope to pull a 55-kg skier up a 37 ∘ slope at
constant speed for 180 m . The coefficient of kinetic friction
between snow and skis is *μ*k = 0.18.

A) Calculate the tension in the rope.

B) How much work does the rope do on the skier?

Answer #1

A 73- kg skier grips a moving rope that is powered by an engine
and is pulled at constant speed to the top of a 23 ∘ hill. The
skier is pulled a distance x = 280 m along the incline and it takes
2.0 min to reach the top of the hill. Part A If the coefficient of
kinetic friction between the snow and skis is μ k = 0.10, what
horsepower engine is required if 30 such skiers...

A skier is pulled up a slope at a constant velocity by a tow
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horizontal. The force applied to the skier by the tow bar is
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0.212. Find the magnitude of the force that the tow bar exerts on
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A skier with an initial speed of 15 m/s slides up a snowy slope
with a 2.50 m height as shown in the figure below. If the
coefficient of friction between the skis and the snow is 0.06, what
is the final velocity of the skier at the top of the hill?
Consider the mass of the skier to be 84 kg.

A 60.0-kg skier coasts up a snow-covered hill that makes an
angle of 23.5 ° with the horizontal. The initial speed of the skier
is 9.17 m/s. After coasting a distance of 1.45 m up the slope, the
speed of the skier is 3.65 m/s. (a) Find the work
done by the kinetic frictional force that acts on the skis.
(b) What is the magnitude of the kinetic
frictional force?

A skier of mass 59.0 kg starts from rest at the top of a ski
slope of height 62.0 m .
b) Now moving horizontally, the skier crosses a patch
of soft snow, where the coefficient of friction is μk =
0.250. If the patch is of width 66.0 m and the average force of air
resistance on the skier is 180 N , how fast is she going after
crossing the patch?
c) After crossing the patch of soft snow, the...

Determine the stopping distance for a skier moving down a slope
with friction with an initial speed of 19.0 m/s . Assume that θ =
5.62 deg, g=9.81 m/s2, and that the coefficient of kinetic friction
between the skier and the slope is 0.289. Suppose the temperature
drops by 2 degrees C and the skier waxes her skis; the coefficient
of kinetic friction drops to 0.173. What is now the stopping
distance, for the same initial velocity?

1. A 85.0-kg speed skier has finished a long down hill race and
reaches a final slope (fig. 1 below) designed to slow her down. At
the bottom of this slope her speed is 29.0 m/s. She slides up the
inclined plane of snow on her skis and at a certain vertical height
h has speed 1.95 m/s. The force of friction between her skis and
the snow does work of magnitude 3995.0 J . (Ignore air friction.)
(a) What...

A 62.0-kg skier is moving at 6.10 m/s on a frictionless,
horizontal, snow-covered plateau when she encounters a rough patch
4.10 m long. The coefficient of kinetic friction between this patch
and her skis is 0.300. After crossing the rough patch and returning
to friction-free snow, she skis down an icy, frictionless hill 2.50
m high.
a) How fast is the skier moving when she gets to the bottom of
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b)How much internal energy was generated in crossing...

A 90 kg skier starts from the top of a hill with a 19 deg slope.
The skier reaches the bottom of the slope 11 s later.
a) If there is a constant friction force of 70 N which resists
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b) Draw a force diagram for the skier with labels and
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c) What is the coefficient of kinetic friction between the block
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d) How much work...

An 7.5 kg crate is pulled 5.5 m up a 30∘ incline by a rope
angled 19 ∘ above the incline. The tension in the rope is 120 N and
the crate's coefficient of kinetic friction on the incline is
0.26.
How much work is done by tension, by gravity, and by the normal
force?

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