You have landed on Mars, and observe that it takes a stone 1.8 sec to fall 6 m. (A) What is the acceleration of gravity on Mars?
(B) How much does a 2 kg stone weigh on Mars?
(C) If you could jump to a height of 1.5 m on Earth, how high can you jump on Mars?
(D) If you knew that the mass of Mars was 6.4 x 1023 kg, what would you deduce is its radius?
(E) The Martian moon Deimos has a mass of 3 x 10-9 that of Mars itself. If Deimos is 2.3 x 107 m away from Mars, how strongly does Mars pull on its small satellite?