Question

1)Explain this topic : - Newton's third law of motion and Gravitation .
2)Free fall
3) Acceleration due to gravity.
ASAP
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Answer 1

Answer:

1 For example, if the Earth is pulling down on you with a gravitational force of 500 N, you are also pulling up on the Earth with a gravitational force of 500 N. ... Newton's third law: If an object A exerts a force on object B, then object B must exert a force of equal magnitude and opposite direction back on object A.

2. In Newtonian physics, free fall is any motion of a body where gravity is the only force acting upon it. In the context of general relativity, where gravitation is reduced to a space-time curvature, a body in free fall has no force acting on it.

3. A free-falling object has an acceleration of 9.8 m/s/s, downward (on Earth). ... The numerical value for the acceleration of gravity is most accurately known as 9.8 m/s/s. There are slight variations in this numerical value (to the second decimal place) that are dependent primarily upon on altitude.

Answer 2

${\green{\huge{ \underline{ \boxed{ \red{{ \mathscr{A \bf{nswer}}}}}}}}}$

${\underline{\purple{\textbf{Newton's Third Law Of Motion And Gravitation:-}}}}$

The Newton's third law of motion also holds good for the force of gravitation . This means that when Earth exerts a force of attraction on an object, then the object, the object also exerts a equal force on the Earth, in opposite direction.

${\underline{\purple{\textbf{Free Fall:-}}}}$

The folling of a body From a height towards the earth under the gravitational force of earth is called free fall.

${\underline{\purple{\textbf{Acceleration Due To Gravity (g):-}}}}$

The uniform acceleration produced in a freely falling body due to the gravitational force of the Earth is known as Acceleration Due to Gravity.

• $\green{\textbf{g = 9.8m/s²}}$

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