QUESTION 4
The gravity on Mars is 3.711 m/s². Since you came from the Moon
previously, where gravity is 1.62 m/s², you have tiny leg muscles.
Not only do you look funny but walking around is a struggle. You
want a Mars hopper to take you around and there are two propellant
options, hypergolic and LOX-hydrocarbon. You will use the vehicle
on average 50,000 km per year, with a useful life of 3 years for
the LOX engine and 4...