Question

explain this please why how we use it please​

Answer 1

Explanation:

First I would like to explain the formula

F = GMm / r^2

1. F is the force of attraction between Mass 1 and Mass2
2. F is directly proportional to the product of masses. F ∝ M x m
3. F is inversely proportional to the square of distance. F ∝ 1/ r^2
4. F ∝ Mm/r^2
5. When we change proportionality to equal to we put a constant of proportionality
6. F = GMm/r^2
7. Here G is the constant of proportionality.
8. The value of G is 6.67 x 10^-11. it does not change, it remains constant. You need to remember its value if you want to solve this type of question

Now how to use the formula

1. Identify all the values M, m and r
2. Put the values in the Formula. F = G Mm / r^2
3. Do the calculations carefully
4. You will get the correct answer.

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