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Novosadov [1.4K]
3 years ago
8

What is the net force on this object?

Physics
2 answers:
vaieri [72.5K]3 years ago
8 0

Answer:

200 newtons

Explanation:

because the sub air that would pull the force down by all of the mass of the sub air go down by that 400 newtons there for your anwer is 200 newtons. because 600-400=200

likoan [24]3 years ago
6 0

Answer:

200N

Explanation:

The net force or resultant force on the object is obtained by adding all the forces acting on it.

In this case we have an upward force and a downward force, since they go in different directions they must have a different sign: we will define upward as positive and downward as negative:

F_{air} = 400N

F_{grav}=-600N

The sign only to indicate that they are going in opposite directions, so the resulting force:

F=F_{air}+F_{grav}=400N+(-600N)=400N-600N=-200N

The net force acting on the object is 200N. (downwars due to the negative sign).

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E×ED=L×LD

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Explanation:

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8 0
3 years ago
Read 2 more answers
A dentist’s drill starts from rest. After 1.46 sof constant angular acceleration, it turns at arate of 27000 rev/min.Find the dr
Black_prince [1.1K]

Answer:

616.3 rad/s²

Explanation:

Given that

t= 1.46 s

Initial angular velocity ,ωi = 0 rad/s

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Angular speed in the rad/s given as

\omega_f=\dfrac{2\pi N}{60}\ rad/s

Now by putting the values

\omega_f=\dfrac{2\times 27000}{60}\ rad/s

ωf=900 rad/s

We know that (if acceleration is constant)

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Therefore the acceleration will be 616.3 rad/s²  

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