The phoenix with a mass of 390 kg was a spacecraft used for exploration of mars. determine the weight of the phoenix, in n, (a) on the surface of mars where the acceleration of gravity is 3.73 m/s2 and (b) on earth where the acceleration of gravity is 9.81 m/s2.

a) on mars W=1454.7N

b)on earth W=3825.9N

Explanation:

The weight of any body with mass is given by the following equation

W=mg

where

m=mass

g=gravity

W=weight

Remember that the weight is expresed in Newton and the units are kgm/s^2

A)weight on the surface of mars

W=(390kg)(3.73m/s^2)=1454.7N

b) on earth

W=(390kg)(9.81m/s^2)=3825.9N

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