JEE Mains · Physics · STD 11 - 7. gravitation
An astronaut of mass \(m\) is working on a satellite or biting the earth at a distance \(h\) from the earth's surface. The radius of the earth is \(R\), while its mass is \(M\). The gravitational pull \(F_G\) on the astronaut is
- A Zero since astronaut feels weightless
- B \(\frac{{GMm}}{{{{\left( {R + h} \right)}^2}}} < {F_G} < \frac{{GMm}}{{{R^2}}}\)
- C \({F_G} = \frac{{GMm}}{{{{\left( {R + h} \right)}^2}}}\)
- D \(0 < {F_G} < \frac{{GMm}}{{{R^2}}}\)
Answer & Solution
Correct Answer
(C) \({F_G} = \frac{{GMm}}{{{{\left( {R + h} \right)}^2}}}\)
Step-by-step Solution
Detailed explanation
According to universal law of Gravitation, Gravitational force \(F = \frac{{GMm}}{{{{\left( {R + h} \right)}^2}}}\)
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