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Two masses are 99.3 m apart. Mass 1 is 92.0 kg and mass 2 is 0.894 kg.

What is the gravitational force between the two masses?

[tex]\[
\begin{array}{c}
\vec{F}=[?] \times 10^{[?]} \text{ N} \\
\vec{F}=G \frac{m_1 m_2}{r^2} \\
G=6.67 \times 10^{-11} \text{ N} \cdot \text{m}^2 / \text{kg}^2
\end{array}
\][/tex]


Sagot :

Sure! Let's solve this step-by-step.

1. Identify the known quantities:

- Mass of the first object, [tex]\( m_1 = 92.0 \)[/tex] kg
- Mass of the second object, [tex]\( m_2 = 0.894 \)[/tex] kg
- Distance between the objects, [tex]\( r = 99.3 \)[/tex] m
- Gravitational constant, [tex]\( G = 6.67 \times 10^{-11} \, \text{N} \cdot \text{m}^2 / \text{kg}^2 \)[/tex]

2. Write down the gravitational force formula:

[tex]\[ F = G \frac{m_1 m_2}{r^2} \][/tex]

3. Plug in the known values:

[tex]\[ F = 6.67 \times 10^{-11} \, \frac{\text{N} \cdot \text{m}^2}{\text{kg}^2} \cdot \frac{92.0 \, \text{kg} \times 0.894 \, \text{kg}}{(99.3 \, \text{m})^2} \][/tex]

4. Calculate the product of the masses:

[tex]\[ 92.0 \, \text{kg} \times 0.894 \, \text{kg} = 82.248 \, \text{kg}^2 \][/tex]

5. Calculate the square of the distance:

[tex]\[ (99.3 \, \text{m})^2 = 9850.49 \, \text{m}^2 \][/tex]

6. Substitute these values into the formula:

[tex]\[ F = 6.67 \times 10^{-11} \, \frac{\text{N} \cdot \text{m}^2}{\text{kg}^2} \cdot \frac{82.248 \, \text{kg}^2}{9850.49 \, \text{m}^2} \][/tex]

7. Perform the division inside the force formula:

[tex]\[ \frac{82.248 \, \text{kg}^2}{9850.49 \, \text{m}^2} \approx 8.350201 \times 10^{-3} \, \frac{\text{kg}^2}{\text{m}^2} \][/tex]

8. Calculate the force value:

[tex]\[ F = 6.67 \times 10^{-11} \times 8.350201 \times 10^{-3} \approx 5.563558808943572 \times 10^{-13} \, \text{N} \][/tex]

9. Express the force in scientific notation:

By simplifying, we get:

[tex]\[ \vec{F}=0.005563558808943572 \times 10^{-13 + 12} \text{N} = 0.005563558808943572 \times 10^{-1} \text{N} \][/tex]

So, the gravitational force [tex]\( \vec{F} \)[/tex] can be written as [tex]\( (0.005563558808943572 \times 10^{-1}) \, \text{N} \)[/tex].

10. Simplify the notation:

Finally, the gravitational force between the two masses is:

[tex]\[ \boxed{0.005563558808943572 \times 10^{-1} \, \text{N}} \][/tex]

Thus:

[tex]\[ \vec{F}=[0.005563558808943572] \times 10^{[-1]} \, \text{N} \][/tex]