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True [87]
3 years ago
8

Newton first law of motion ?​

Physics
2 answers:
maw [93]3 years ago
8 0

Answer:

The law of inertia

Explanation:

A body at rest will remain at rest, and a body in motion will remain in motion unless it is acted upon by an external force

timofeeve [1]3 years ago
6 0

Answer:

The law of inertia

Explanation:

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Describe how varying the incline plane angle Affects the force
Greeley [361]

Answer: the force increases as the angle increases

Explanation:

If we assume the incline plane is frictionless, the only force acting on an object on the incline plane is the force of gravity:

F=mg

where m is the mass and g the acceleration due to gravity.

However, the actual force that makes the object sliding down along the incline is not the gravity itself, but the component of the force of gravity parallel to the surface of the incline, which is given by

F_p = mg sin \theta

where \theta is the angle of the incline.

Therefore, we see that as the angle of the incline increases, the force on the object increases.

4 0
4 years ago
(100 pts)<br>Why can't you use distance divide by time to calculate the instantaneous<br>speed?​
Fiesta28 [93]

Answer:

Instantaneous speed means speed at any instant

that means Speed is changing with time

You know speed is distance/time

So that means distance is also changing with time

So we take infinitesimal small distance per infinitesimal small time As we assume speed is constant in infinitesimal small time dt

So, we take speed = ds/dt

ds = infinitesimal small distance

dt = infinitesimal small time

As its ratio is equal to speed at any instant

Note : We are taking infinitesimal small distance

But :) we are taking infinitesimal small time also

As you know if denominator is small fraction is large So fraction always give large value

So it's not O ( this makes confuse to most of students)

So, thanks

Good question

Keep thinking like this :)

4 0
4 years ago
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How does air resistance affect the acceleration of falling objects?
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The answer is pretty simple, the others don’t make sense really B. Law
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