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A planet exerts a gravitational force of magnitude 4e22 N on a star. If the planet were 3 times closer to the star (that is, if the distance between the star and the planet were 1/3 what is is now), what would be the magnitude of the force on the star due to the planet

Respuesta :

Answer:

[tex]3.6\times10^{23} N[/tex]

Explanation:

[tex]F=\frac{GmM}{r^2}=4\times10^{22} N[/tex]

[tex]F'=\frac{GmM}{(r/3)^2}=9\frac{GmM}{r^2}=9\times4\times10^{22}=3.6\times10^{23} N[/tex]

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