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Home > MC2 > Chapter 4 > Lesson 4.2.3 > Problem 4-58

4-58.

Due to differences in gravity, a -pound person on Earth would weigh about pounds on Mars and pounds on the moon.

  1. What would a -pound person on Earth weigh on Mars? Explain your reasoning with words or a diagram.

    How much would a -pound person on Earth weigh on Mars? Note that pounds is half of pounds, therefore the person's weight on Mars and on the moon should be halved.

    Now note that is triple . What should the person's weight on Mars be?

    pounds.

  2. What would a -pound person on Earth weigh on the moon? Explain your reasoning with words or a diagram.

    See part (a).

    pounds.

  3. Additional Challenge: If an astronaut on the moon weighed about pounds, what would that astronaut weigh on Mars? Show how you know.

    Note that pounds is double pounds. Doubling the weight of a -pound person on Earth should give you the weight of the astronaut on Earth.