auzriannamarie
19.12.2019 •
Physics
Suppose a planet has twice the mass of the earth and twice the earth's radius. what is the acceleration of an object in free fall on this planet?
2.5 m/s2
4.9 m/s2
9.8 m/s2
4.9 × 106 m/s2
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Ответ:
g = G m / r2
where
G=constant universal gravitational = 6.67 x 10^-11 n m^2/kg^2
m=planet mass=5.9736 x 10^24 kg (twice=11.9472)
r radium planet=6.372 km (twice=12.744)
g= 6.67 x 10^-11 n m^2/kg^2 x 11.9472 10^24 kg/(12.744.000m)^2
g=4.90 m/s^2 (1/2 of Earth gravity) < second option
Ответ:
ya I agree
Explanation:
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