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a metros is falling towards the earth if mass and radius of earth are6×10^24kg and 6.4×10^3km respectively. find the height of the meter from earth where its accleration due to gravity become 4m/s^2 |
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Answer» ong>Answer: G= R 2
Given, G=6.67×10 −11 2 kg −2
R=6.4×10 6 m g=9.8ms −2
∴M= G gR 2
= 6.67×10 −11
9.8×6.4×6.4×10 12
≈6×10 24 kg |
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