A team of dogs is pulling a person in a sled in the snow. The dogs are attached by a harness that is parallel to the ground. The combined mass of the person and the sled is 62.5 kg. The coefficient of kinetic friction is 0.190, and the harness tension is 180.0 N. Determine the sled's acceleration.

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please answer 47 please.
10
Integnine
(44) You are pulling a sled with a constant velocity using a rope held horizontally in
the snow. Using a spring scale attached to the rope, you measure the tension
to be 0.96 N. The sled's mass is 0.58 kg. Write the surface force the ground
exerts on the sled in component form, and determine its magnitude.
NEED A HINT? Go online to your eText Sample Problem for stepped out support.
(45) You are pulling a friend on a sled with a constant velocity using a rope held
horizontally in the snow. Using a spring scale attached to the rope, you
measure the tension to be 112 N. The combined mass of the sled and your
friend is 57.4 kg. Write the surface force the ground exerts on the sled in
component form, and determine its magnitude.
46 A dog is pulling an empty sled attached by a harness that is parallel to the
ground in the snow. The sled is moving with constant velocity. The mass of
the sled is 1.2 kg, and the coefficient of static friction is 0.20. Determine the
harness tension.
(47) A team of dogs is pulling a person in a sled in the snow. The dogs are
attached by a harness that is parallel to the ground. The combined mass of
the person and the sled is 62.5 kg. The coefficient of kinetic friction is 0.190,
and the harness tension is 180.0 N. Determine the sled's acceleration.
(48) During an experiment in physics class, a student places a large block on a
plank. The student raises one end of the plank to form an incline until just
before the block starts to slide down. The block experiences a force of 26 N
parallel to the incline and 42 N perpendicular to the incline. What is the
coefficient of static friction such that the block stays at rest?
(49) During another experiment, a student places the same large block on a plank.
The student raises one end of the plank until the block starts to slide down.
Another classmate explains that the block begins to slide because the parallel
component of the surface force exerted on the block by the plank increases
as the plank is lifted higher. Use mathematical reasoning to explain why they
classmate is incorrect.
(50) A large painting hangs motionless from two wires attached to the same
point at the top of the frame. The wires are attached to equidistant points
on the wall above the painting. Each wire has a tension force of 108 N in the
y-direction and 80.0 N in the x-direction. Determine the mass of the painting.
(51 A child is pulling an empty cart attached by a rope that is parallel to the
ground. The cart is moving with constant velocity, and its mass is 1.5 kg.
Suppose a mass of 7.5 kg is added to the sled, and its velocity stays the
same. By what factor does the tension in the rope change?
065
lepos
out sup
noitpenit
2 Types of Forces
75
Transcribed Image Text:10 Integnine (44) You are pulling a sled with a constant velocity using a rope held horizontally in the snow. Using a spring scale attached to the rope, you measure the tension to be 0.96 N. The sled's mass is 0.58 kg. Write the surface force the ground exerts on the sled in component form, and determine its magnitude. NEED A HINT? Go online to your eText Sample Problem for stepped out support. (45) You are pulling a friend on a sled with a constant velocity using a rope held horizontally in the snow. Using a spring scale attached to the rope, you measure the tension to be 112 N. The combined mass of the sled and your friend is 57.4 kg. Write the surface force the ground exerts on the sled in component form, and determine its magnitude. 46 A dog is pulling an empty sled attached by a harness that is parallel to the ground in the snow. The sled is moving with constant velocity. The mass of the sled is 1.2 kg, and the coefficient of static friction is 0.20. Determine the harness tension. (47) A team of dogs is pulling a person in a sled in the snow. The dogs are attached by a harness that is parallel to the ground. The combined mass of the person and the sled is 62.5 kg. The coefficient of kinetic friction is 0.190, and the harness tension is 180.0 N. Determine the sled's acceleration. (48) During an experiment in physics class, a student places a large block on a plank. The student raises one end of the plank to form an incline until just before the block starts to slide down. The block experiences a force of 26 N parallel to the incline and 42 N perpendicular to the incline. What is the coefficient of static friction such that the block stays at rest? (49) During another experiment, a student places the same large block on a plank. The student raises one end of the plank until the block starts to slide down. Another classmate explains that the block begins to slide because the parallel component of the surface force exerted on the block by the plank increases as the plank is lifted higher. Use mathematical reasoning to explain why they classmate is incorrect. (50) A large painting hangs motionless from two wires attached to the same point at the top of the frame. The wires are attached to equidistant points on the wall above the painting. Each wire has a tension force of 108 N in the y-direction and 80.0 N in the x-direction. Determine the mass of the painting. (51 A child is pulling an empty cart attached by a rope that is parallel to the ground. The cart is moving with constant velocity, and its mass is 1.5 kg. Suppose a mass of 7.5 kg is added to the sled, and its velocity stays the same. By what factor does the tension in the rope change? 065 lepos out sup noitpenit 2 Types of Forces 75
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