Question

**8. When attempting to determine the coefficient of
kinetic friction, why is it necessary to move the block with
constant velocity? When attempting to determine the coefficient of
static friction, why is it necessary to measure the applied force
just before the block moves? Are these two scenarios (constant
velocity and almost in motion) the only scenarios when friction is
present? Explain your answer.**

Answer #1

When attempting to determine the coefficient of kinetic
friction, why is it necessary to move the block with constant
velocity? When attempting to determine the coefficient of static
friction, why is it necessary to measure the applied force just
before the block moves? Are these two scenarios (constant velocity
and almost in motion) the only scenarios when friction is present?
Explain your answer.

Consider an inclined plane at an angle of 40.0°, with a kinetic
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following:
a) Determine the speed of the object at the end of this
displacement using Newton’s Laws of...

The coefficient of kinetic friction between a refrigerator (mass
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A 3.00 kg block that has a coefficient of kinetic friction of
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a) Free body diagram.
b) The x and y components of the applied force.
c) The frictional force on the block.
d) The acceleration of the block.

A 3.00 kg block that has a coefficient of kinetic friction of
0.350 and is initially moving at a constant velocity of to the
right. A 75.0 newton force is then applied to the block, toward the
right, at an angle of 200 above the horizontal. Find the
following:
a. Free body
diagram.
b. The x and y components
of the applied force.
c. The frictional force on
the block.
d. The acceleration of the
block.

A 3.00 kg block that has a coefficient of kinetic friction of
0.350 and is initially moving at a constant velocity of to the
right. A 75.0 newton force is then applied to the block, toward the
right, at an angle of 200 above the horizontal.
Find the following: a. Free body diagram. b. The x and y
components of the applied force. c. The frictional force on the
block. d. The acceleration of the block.

In this example we will calculate the coefficients of static and
kinetic friction using two equations along with Newton’s second law
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Calculate what the magnitude this force needs to be in order to
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A
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μk=μk=
A
car rounds an unbanked curve of radius 95 m. If the coefficient of
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The coefficient of kinetic friction between rubber tires and wet
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far would the car travel before stopping? If the tires of the car
did not skid, the coefficient...

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