You’re involved in the design of a mission carrying humans to the surface of the planet Mars,
which has a radius r M = 3.40 × 10 6 m and a mass m M = 6.42 × 10 23 Kg. The earth weight of the mars lander is 39,200 N.
In solving the following questions neglect the gravitational effects of the (very small) moons of Mars.
(i) Calculate its acceleration gm due to the gravity of Mars, 6.0 × 10 6 m above the surface of Mars–
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Ans.
(i)
Sol. 0.48 m/s 2
(ii)
Sol. 15000N
(iii)
Sol. 3.7 m/s 2
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