Escape velocity of a body of $1\, kg$ mass on a planet is $100 \,m/sec$. Gravitational Potential energy of the body at the Planet is ......... $J$.
Escape velocity of a body of $1\, kg$ mass on a planet is $100 \,m/sec$. Gravitational Potential energy of the body at the Planet is ......... $J$.
$-5000$
$-1000$
$-2400$
$5000$
Escape velocity of a body of $1\, kg$ mass on a planet is $100 \,m/sec$. Gravitational Potential energy of the body at the Planet is ......... $J$.
${v_e} = \sqrt {\frac{{2GM}}{R}} = 100\, \Rightarrow \,\frac{{GM}}{R} = 5000$
Potential energy $U = - \frac{{GMm}}{R} = - 5000\,J$
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