Question

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?

Answer #1

What is the minimum horizontal force that will cause a 5.00-kg
box to begin to slide on a horizontal surface when the coefficient
of static friction is 0.710? (Express your answer to three
significant figures.)

A factory worker exerts a 100 N horizontal pushing force on a
70.0 kg box that is initially at rest on the floor. The coefficient
of static friction is 0.2 and the coefficient of kinetic friction
is 0.1. The force of friction acting on the box is equal to:

18.
A 34.5 kg box initially at rest is pushed 5.75 m along a rough,
horizontal floor with a constant applied horizontal force of 150 N.
If the coefficient of friction between box and floor is 0.300, find
the following.
(a) the work done by the applied force
___J
(b) the increase in internal energy in the box-floor system due to
friction
___J
(c) the work done by the normal force
___J
(d) the work done by the gravitational force...

A 10kg box is being pushed with a horizontal force of 40N. The
coefficient of static friction is 0.7 and for kinetic friction is
0.5. What is the magnitude of the friction force acting on the
box?

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.)

A 12 kg block is pulled along a level plane by a FF = 86 NN
force directed 40° above the horizontal. The coefficient of kinetic
friction between the block and plane is μkμk = 0.39
1.Find the x-component of the 86 NN force acting on the
block.
Fx=. N
2.Find the y-component of the 86 NN force acting on
the block
Fy
3.Find the y-component of the 86 NN force acting on the
block.
4. Find the acceleration of...

A horizontal force of magnitude F = 100 N is applied to slide a
block of mass m = 5 kg up a ramp inclined at θ = 37 o to the
horizontal. If the coefficient of kinetic friction between the
block and the ramp is 0.4, what will be the acceleration of the
block?

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

A 2.00 kg box and a 3.00kg box are place on a horizontal floor.
The 3,00 kg box is to the right of 2.00 kg box. The two boxes are
connected by a massless string. A horizontal force of 10. 0 N is
pulling the system of two boxes toward right. Find (a) the
acceleration of the boxes and (b) the tension in the string between
the boxes, if the coefficient of friction between each box and the
floor is...

Suppose you have to move a heavy crate of
weight 875
N by sliding it along a horizontal concrete
floor. You push the crate to the right with a horizontal force of
magnitude 300
N, but friction prevents the crate from
sliding. What is the
magnitude
Fp of
the minimum force you need to exert on the crate to make it start
sliding along the floor? Let the coefficient of static
friction ?s between the crate and the floor be...

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