Question

A child is sitting on a sled and together they have a mass of 25.0 kg. The sled is being pulled by a rope which is angled 15 degrees from the slope. The sled is being pulled at a constant speed of 1.22 m/s up a 25.0 degrees hill that is 65.0 meters long. If the coefficient of friction between the sled and the snow is 0.180, what force is being used to pull the sled?

Answer #1

Suppose the ski patrol lowers a rescue sled and victim, having a
total mass of 80.0 kg, down a 60.0° slope at constant speed, as
shown below. The coefficient of friction between the sled and the
snow is 0.15. (a) How much work is done by friction as the sled
moves 40.0 m along the hill? (b) How much work is done by the rope
on the sled in this distance? (c) What is the work done by the
gravitational...

Suppose the ski patrol lowers a rescue sled carrying an injured
skiier, with a combined mass of 97.5 kg, down a 60.0° slope at
constant speed. The coefficient of kinetic friction between the
sled and the snow is 0.100.
a) How much work in joules, is done by friction as the sled
moves 3l m along the hill?
b)How much work in joules, is done by the rope on the sled over
this distance ?
c) What is the work...

Margie’s 15 kg brother Luke sits on a sled. Margie pulls the
sled across the floor using a rope that is angled 20° above the
floor. The tension is a constant 30 N and the coefficient of
friction is 0.20. Use work and energy to find Luke’s speed after
being pulled 3.0 m.

Calculate the final velocity of a child and sled at the bottom
of a hill covered in snow if the mass of the child is 65 kg, the
sled is 8 kg using energy calculations instead of the free-body
diagrams and force analysis. The length of the hill is 1000 m and
the slope is at 55 deg. angle. mus of k = 0.015.
Once at the bottom of the hill, how far must the sled travel in
order to...

A 15-kg sled is being pulled along the horizontal snow-covered
ground by a horizontal force of 27 N. Starting from rest, the sled
attains a speed of 2.1 m/s in 7.5 m.
Find the coefficient of kinetic friction between the runners of
the sled and the snow.

A wooden sled of mass 100 kg sits on wet snow
(µs=0.14,?k=0.1).
Calculate magnitude of the friction if it is being pushed
horizontally by a 90N force.
Calculate the magnitude of the friction if it is being pulled by
a 150N force inclined at 30 degrees from the horizontal.
Please show and explain formulas

Suppose the ski patrol lowers a rescue sled carrying an injured
skiier, with a combined mass of 75kg, down a 60 degree slope at
constant speed. The coefficient of kinetic friction between the
sled and the snow is 0.100.
A) How much work, in joules, is done by friction as the sled
moves 28m along hill?
B) How much work, in joules, is done by the rope on the sled
over this distance?
C) What is the work, in joules,...

A girl is sitting in a sled sliding horizontally along some snow
(there is friction present). The mass of the girl
is 36.8 kg and the mass of the sled is 6.6 kg.
The force of friction acting on the sled as it slides is -118
N.
If the sled was initially moving at 14.3 m/s at t=0, how far
will it slide before the sled stops?

A
33.5 lb child holding a 10.8 kg sled starts running towards a
downward slope. The child then jumps on the sled with an initial
speed of 0.640 m/s and then slides down the frictionless slope. The
child with sled has a speed of 5.25 m/s at the bottom of the hill.
a) What is the height of the hill?
b) What is the gravitational potential energy of the
child/sled at bottom of the hill?

A heavy sled is being pulled by two people as shown in the
figure. The coefficient of static friction between the sled and the
ground is μs = 0.619, and the kinetic friction coefficient is μk =
0.459. The combined mass of the sled and its load is m = 366 kg.
The ropes are separated by an angle φ = 22°, and they make an angle
θ = 31.8° with the horizontal. Assuming both ropes pull equally
hard, what...

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