Question

A crate of mass 9.6 kg is pulled up a rough incline with an initial speed of 1.40 m/s. The pulling force is 98 N parallel to the incline, which makes an angle of 19.5° with the horizontal. The coefficient of kinetic friction is 0.400, and the crate is pulled 4.98 m.

(a) How much work is done by the gravitational force on the
crate?

J

(b) Determine the increase in internal energy of the crate–incline
system owing to friction.

J

(c) How much work is done by the 98-N force on the crate?

J

(d) What is the change in kinetic energy of the crate?

J

(e) What is the speed of the crate after being pulled 4.98 m?

m/s

Answer #1

A crate of mass 9.6 kg is pulled up a rough incline with an
initial speed of 1.52 m/s. The pulling force is 104 N parallel to
the incline, which makes an angle of 20.4° with the horizontal. The
coefficient of kinetic friction is 0.400, and the crate is pulled
4.92 m.
(a) How much work is done by the gravitational force on the
crate?
J
(b) Determine the increase in internal energy of the crate–incline
system owing to friction....

A crate of mass 10.2 kg is pulled up a rough incline with an
initial speed of 1.56 m/s. The pulling force is 92 N parallel to
the incline, which makes an angle of 19.0° with the horizontal. The
coefficient of kinetic friction is 0.400, and the crate is pulled
5.04 m.
(a) How much work is done by the gravitational force on the
crate?
J
(b) Determine the increase in internal energy of the crate–incline
system owing to friction....

A crate of mass 10.6 kg is pulled up a rough incline with an
initial speed of 1.52 m/s. The pulling force is 94 N parallel to
the incline, which makes an angle of 20.2° with the horizontal. The
coefficient of kinetic friction is 0.400, and the crate is pulled
4.94 m.
(a) How much work is done by the gravitational force on the
crate?
(b) Determine the increase in internal energy of the crate–incline
system owing to friction.
(c)...

A 7.8 kg crate is pulled 5.4 m up a 30o incline by a
rope angled 19o above the incline. The tension in the
rope is 120 N and the crate's coefficient of kinetic friction on
the incline is 0.24.
a) How much work is done by tension, by gravity, and by the
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b) What is the increase in thermal energy of the crate and
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How much work is done by tension, by gravity, and by the normal
force? What is the increase in the thermal energy of the crate and
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A 8.4 kg crate is pulled 4.7 m up a 30 degree incline by a rope
angled 15 degrees above the incline. The tension in the rope is 130
N and the crate's coefficient of kinetic friction on the incline is
0.27. 1.) What is the workd done by the Normal Force?
1.) What is the work done by the Frictional force?
ANSWER: -47.7J
2.) What is the total work done on the crate?
ANSWER: 349J
3.) If the object...

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
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How much work is done by tension, by gravity, and by the normal
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A
55-kg packing crate is pulled with constant speed across a rough
floor with a rope that is at an angle of 41.6 degrees above the
horizontal.
Part a:
If the tension in the rope is 165 N how much work is done on
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___ J

A box with mass 1.74 kg is being pulled across a rough surface
at a constant speed with a coefficient of kinetic friction
µk = 0.366. The pulling force has a magnitude of 11.2 N
and is directed at an angle 32.8 degrees above horizontal. If the
box is dragged a distance of 10.3 m, what is the total energy lost
to friction? (Hint: be sure to account for the upward component of
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A 55-kg packing crate is pulled with constant speed across a
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If the tension in the rope is 175 N , how much work is done on
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