Explanation The weight of an object is the product of the mass of an object to the acceleration due to the gravity. The expression of weight is given as follows: W = m g Here, m is the mass of an astronaut and g is the acceleration due to gravity. Given: Mass of an astronaut m = 68 kg Gravity of Moon g = 1.7 m/s 2 Gravity of Mars g = 3.7 m/s 2 Formula used: W = m g Calculation: Part (a): Substitute, m = 68 kg and g = 9 .8 m/s 2 in equation (1) so the weight of an astronaut on Earth is given as follows: W = m g =9 .8 m/s 2 ( 68 kg ) = 666.4 N Part (b): Substitute, m = 68 kg and g = 1.7 m/s 2 in equation (1) so the weight of an astronaut on the moon is given as follows: W = m g =1

7th Edition

ISBN: 9780321733627

Author: Douglas C. Giancoli

Publisher: PEARSON

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Chapter 4, Problem 2P

To determine

The weight of an astronaut on −

Earth

Moon

On Mars

In outer space traveling with constant velocity

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Chapter 4, Problem 1P

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