7.12 A rocket is fired from the earth towards the sun

PHYSICS · Subjective · AP · Physics C: Mechanics · Force and Translational Dynamics · Force and Translational Dynamics

Problem

7.12 A rocket is fired from the earth towards the sun. At what distance from the earth's centre is the gravitational force on the rocket zero ? Mass of the sun =2×1030 kg=2 \times 10^{30} \mathrm{~kg}, mass of the earth =6×1024 kg=6 \times 10^{24} \mathrm{~kg}. Neglect the effect of other planets etc. (orbital radius =1.5×1011 m=1.5 \times 10^{11} \mathrm{~m} ).

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