Question

Calculate the gravitational force on a object of 40 kg at the surface of earth , if radius of earth is R =6400 km , mass of earth =6×10 kg (power of 10 is 24)

Answer 1

its 6.022 x 10 to the power 55785

Answer 2

_/\_ Hello mate__ here is your answer -

Mass of Earth, M = 6 × 10^24 kg

Mass of object, m = 1 kg

Universal gravitational constant,

G = 6.7 × 10^−11 Nm^2 kg^−2

r = radius of the Earth (R) ( ob. is on the surface of earth)

r = R = 6.4 × 10^6 m

Therefore, the gravitational force

F = GMm / r^2

$=(6.7×10^-7×6×10^24 ×1)/(6.4×10^4)^2$

= 9.8 N

I hope, this will help you.☺

Thank you______❤

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