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Marizza181 [45]
3 years ago
10

Using a horizontal force of 200N,we intend to move a wooden cabinet across a floor at constant velocity.What is the friction for

ce that will be exerted on the cabinet?
With explanation please
Physics
1 answer:
IgorLugansk [536]3 years ago
8 0

Answer:

-200 N

Explanation:

The cabinet moves at constant velocity, so that means there's no acceleration.

Applying Newton's second law to the cabinet:

∑F = ma

F + 200 = 0

F = -200

The friction force is 200 N in the opposite direction.

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C is the answer

The Bay of Fundy has the greatest tidal ranges on Earth. What can you infer about the Bay of Fundy?

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If the magnetic field of an electromagnetic wave is in the +x-direction and the electric field of the wave is in the +y directio
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3 years ago
A 12000 kg boat is moving 4.25 m/s. Its engine pushes 9200 N forward, but the current pushes back at 12,500 N. How much times do
Verizon [17]

Answer:

15.5 seconds

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Apply Newton's second law:

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v = at + v₀

0 = (-0.275) t + 4.25

t = 15.5 s

It takes the boat 15.5 seconds to stop.

7 0
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Which conditions are usually the effect of a low air pressure system?
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3 0
3 years ago
Read 2 more answers
A uniform-density 7 kg disk of radius 0.21 m is mounted on a nearly frictionless axle. Initially it is not spinning. A string is
GREYUIT [131]

Answer:

\omega = 22.67 rad/s

Explanation:

Here we can use energy conservation

As per energy conservation conditions we know that work done by external source is converted into kinetic energy of the disc

Now we have

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now we know that work done is product of force and displacement

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now from above equation we will have

39.6 = \frac{1}{2}(0.154)\omega^2

\omega = 22.67 rad/s

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3 years ago
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