# Science/Physics

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Andee has a mass of 68.5 kg on earth. What is his weight on Earth? What should his mass be in order to have the same weight at the surface of the moon?

• Science/Physics -

weight (force) = mg
Look up g if you don't know it.

Now, divide that by the relative gravity of the moon. For example, if the moon has 1/2 the gravity of earth, you will need double the mass for the same weight.

• Science/Physics -

I have this assignment too right now,and can't answer it..because the gravity of earth in the moon is not given:(

• Science/Physics -

W = mg
W = (68.5 kg) (9.8 m/s^2)
W = 671 N

m = W/g
m = 671N/9.8 m/s^2
m = 68.5 kg

Lols. Not really sure about the answer on the mass because there's no given gravity of the moon.

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