Respuesta :
The magnitude of the gravitational force exerted by the earth on a 9.0-kg brick when the brick is in free fall will be 87.93 N.
What is gravitational force?
Newton's law of gravity states that each particle having mass in the universe attracts each other particle with a force known as the gravitational force.
Gravitational force is proportional to the product of the masses of the two bodies and inversely proportional to the square of their distance.
The magnitude of the gravitational force exerted by the earth on a 9.0-kg brick when the brick is in free fall will be;
[tex]\rm F= G\frac{Mm}{R^2} \\\\ \rm F= 6.67 \times 10^{-11}\times \frac{6 \times 10^{24}\times 9 }{(6.4 \times 10^6)^2} \\\\ F=87.93 \ N[/tex]
Hence the magnitude of the gravitational force exerted by the earth on a 9.0-kg brick when the brick is in free fall will be 87.93 N.
To learn more about the gravitational force refer to the link;
https://brainly.com/question/24783651
