Answer :
If the earth were twice as massive as it is now, the gravitational force between it and the sun would be twice as massive as it is now
Gravitational force of 2 objects can be determined as below:
F = G [tex]\frac{m_{1}m_{2} }{r^{2}}[/tex]
With, F = Gravitational force
G = Gravitation constant
m1 = mass object 1
m2 = mass object 2
r = distance between object
If earth mass became twice as massive as it is now, the gravitational force can be compared by using equation above :
F1/F2 = G [tex]\frac{m_{1}m_{2} }{r^{2}}[/tex] / G [tex]\frac{m_{1}m_{2} }{r^{2}}[/tex]
F1/F2 = m earth/ 2 m earth
F1/F2 = 1/2
F2 = 2F1
with,
F2 = gravitational force with earth mass became twice as massive as it is now
F1 = gravitational force with earth as it is now
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