Question

A
box kg meters with constant speed on a rough inclined plane whose
surface is 30 ° with the horizontal. What is the magnitude of the
work done by the friction force?

A
box of mass M = 5 kg slides 10 meters with constant speed on a
rough inclined plane whose surface is 30 ° with the horizontal.
What is the magnitude of the work done by the friction force?

Answer #1

A box of mass 730 kg is being pulled at a constant speed across
a rough horizontal floor by a constant force, F. The angle
of this force above the horizontal is such that the force you apply
is a minimum (that is, the amount of force you need to move the box
at a constant speed across the floor depends on the angle at which
you pull - find the angle which the force is a minimum). Calculate
the...

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
the pulling force, and note that the...

A 10 kg box was lying on a smooth surface. A
rope was connected to the box. The box was pulled by the rope at
angle of 30° with the
horizontal. What applied force will keep the box
moving upward at a constant speed?
A 10 kg box was resting on an inclined rough
surface, which makes an angle of
30° with the horizontal. The
coefficient of kinetic friction between the surface and the box is
0.4. The box was...

A construction worker pushes on a 10 kg crate down an inclined
plane that is 7.0 m long and is inclined at an angle of 20 degrees
to the horizontal. As a result, the crate slides down the entire
length of the plane with a constant speed of 3.0 m/s. Suppose that
the worker pushes directly on the crate in a direction parallel to
the incline with a force of 50 N for the entire length of the
plane. A)...

An object is pushed upwards at constant velocity for 8 m along a
30° inclined plane by the horizontal force F. The coefficient of
kinetic friction between the box and the surface is 0.4.
Calculate the work done by,
a. The applied force
b. The frictional force
c. The gravitational force
d. The net force

A 2.00-kg block on a 30° inclined plane slides down at a
constant speed of 3.00 m/s. What is the power of the frictional
force in moving the block?

A box with a mass of 7.01 kg is sliding along a horizontal
surface at constant velocity. It is pulled by a horizontal force
and the coefficient of kinetic friction between the box and the
surface is 0.375.
Part (a) What is the work done, in joules, by
the pulling force as the box moves a distance of 0.495 m?
Part (b) What is the work done, in joules, by
the force of friction 33% Part (c) What is the...

4) A 5.0 kg box slides 2.00 m down a ramp that is inclined at
300 below the horizontal. The coefficient of kinetic friction
between the box and the ramp’s surface is 0.20
a) What is the work done by gravity?
b) What is the work done by the normal force?
c) What is the work done by friction?
d) What is the net work done on the package?
e) If the box starts from rest, what is its speed...

A box with 10 kg of mass slides down an inclined plane that is
1.7 m high and 3.5 m long. Due to friction the box reaches 3.0 m/s
at the bottom of the inclined plane. Beyond the inclined plane lies
a spring with 650 N/m constant. It is fixed at its right end. The
level ground between the incline and the spring has no friction
The box compressed the spring, got pushed back towards the
incline by the spring....

A 2400kg block of granite is pulled up an inclined plane at a
constant speed of 1.3 m/s by an electric motor. The coefficient of
kinetic friction between the granite and the surface is .18 … (a)
How much work is done by gravity, friction, & the motor? (b)
How much power must be supplied by the motor? (Pulled a distance of
50 meters in the x-direction and 30 meters in the y-direction)

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