Suppose that Planet Q exists such that it is an identical planet to Earth yet orbits the sun at a distance of 5 AU. How does the amount of gravitational force exerted on Planet Q by the sun compare to the amount of gravitational force exerted on Earth by the sun

Respuesta :

Answer:

Force on planet Q  =[tex]\dfrac{1}{25} F_e[/tex]

Explanation:

given,

Planet Q is identical to planet Earth.

Distance of the planet Q is 5 AU

distance between earth and sun = 1 AU

to calculate the gravitational force on the Q by the sun in comparison with the gravity on earth.

we know the equation of gravitation force between two bodies

[tex]F = G\dfrac{mM}{r^2}[/tex]

as planet Q is identical so mass will be same.

so from the above equation we can clearly see that the force is inversely proportional to square of  distance.

force on earth (F e)= [tex]F = G\dfrac{mM}{1^2}[/tex]

force on planet Q = [tex]F = G\dfrac{mM}{5^2}[/tex]

on comparison

Force on planet Q  =[tex]\dfrac{1}{25} F_e[/tex]