Question

Find the horizontal force necessary to move a box whose mass is 95.0 kg across a horizontal surface at constant speed if the coefficient of friction (µ) is 0.215. in N to three decimal

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
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?

A woman exerts a horizontal force of 107 N on a box with a mass
of 40.2 kg.
(a)
If the box doesn't move, what's the magnitude of the static
friction force (in N)?
N
(b)
What is the minimum possible value of the coefficient of static
friction between the box and the floor? (Assume the box remains
stationary.)

You find that it takes a horizontal force of 167 NN to slide a
box along the surface of a level floor at constant speed. The
coefficient of static friction is 0.51, and the coefficient of
kinetic friction is 0.38.If you place the box on a dolly of mass
5.9 kgkg and with coefficient of rolling friction
1.6×10−2, what horizontal acceleration would that 167 NN
force provide?

1.A 23 kg box is given a shove across a horizontal surface that
gives it an initial speed of 6 m/s. The box is eventually brought
to rest by friction. The coefficient of kinetic friction in this
example is 0.42. How far does the box go after the shove before it
stops?
??? m?
2. A 15 kg box is given a shove across a horizontal surface that
gives it an initial speed of 18 m/s. The box is eventually...

A 19 kg box is given a shove across a horizontal surface that
gives it an initial speed of 7 m/s. The box is eventually brought
to rest by friction. The coefficient of kinetic friction in this
example is 0.44. How far does the box go after the shove before it
stops?

Marsha is pushing down and to the right on a 21-kg box at an
angle of 30? below horizontal. The box slides at constant velocity
across a carpet whose coefficient of kinetic friction with the box
is 0.70.
Determine the magnitude of the force exerted by Marsha on the
box.
Determine the magnitude of the normal force exerted by the
surface on the box.
Determine the magnitude of the friction force exerted by the
surface on the box.

A boy is pulling a toy box across a horizontal rough surface. If
his pulling force is 60 Newton, what is the acceleration of the
box, given that mass of the box m = 18 kg, the angle of his force
with respect to the horizontal θ = 20°, that the kinetic
frictional coefficient between the box and the surface
μk = 0.15

. A block of mass 2.00 kg is attached to a horizontal spring
with a force constant of 500 N/m. The spring is stretched 5.00 cm
from its equilibrium position and released from rest. Use
conservation of mechanical energy to determine the speed of the
block as it returns to equilibrium
(a) if the surface is frictionless
(b) if the coefficient of kinetic friction between the block and
the surface is 0.350

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