What is the weight of 2 kg of yogurt

The weight of 2Kg yogurt is 19.6N.

Explanation:

The Universal gravitation law describes how two bodies with a particular mass will be attracted to each other:

(1)

Where G is the gravitational constant, m1 and m2 are the masses of the two objects and r is the distance between them.  

The gravitational force will decrease if the square of the distance between the two objects increases, that means the force (F) and the distance (r) are inversely proportional.

That can explain why planets orbit around the Sun. But the force of gravity also exists between objects that are in the surface of the Earth.  

So, it will be an attraction between the Yogurt and the Earth. The force of that attraction to Earth is defined as the weight:  

 (2)

Notice that equation (2) is Newton's second law, but in this case the acceleration of the object is due to gravity.

Since , therefore:

So, the weight of 2Kg yogurt is 19.6N.

graphing motion: mastery test

209be

what is the instantaneous acceleration of

the particle at point b?

0 meters/second?

10 meters/second?

12 meters/second?

velocity imetersisecond

15 meters/second?

20

time (seconds)

answer: 0 meters/second^2

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