The diagram shows the time t (in seconds) it takes an object to fall x feet on Earth and on Mars.
1. On Earth, how long does it take an object to fall 1 foot? 16 feet? 32 feet? Write each answer as a decimal. Round irrational numbers to the nearest hundredth.
2. On Mars, how long does it take an object to fall 2 inches? 16 feet? 24 feet? Write each answer as a decimal. Round irrational numbers to the nearest hundredth.
3. On which planet do objects fall faster? Explain your reasoning.
4. How much longer does it take an object to fall 64 feet on Mars than on Earth? Round your answer to the nearest tenth of a second.
5. Based on your knowledge of the gravity on Earth, do you think human life can be sustained on Mars. Explain your decision; be sure to use mathematical evidence to justify your decision.
(Taken from http://www.npr.org/blogs/13.7/2012/08/13/158697974/mars-and-the-phenomenal-curiosity)