An orbiting satellite will escape if
Answer & explanation
Correct answer: option 3
$v_e=\sqrt{\frac{2 G m}{r}}, v_0=\sqrt{\frac{G m}{r}}$,
$\frac{v_e-v_0}{v_e}=\frac{v_2-1}{1}$ = 0.41 or 41 %
$\frac{KE_2}{KE_1}=\left(\frac{v_{e}}{V_0}\right)^2=2$
⇒ KE is doubled