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.

Question

Engineering

Norah Bradshaw

30 August, 10:15

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.

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Answers (1)

Know the Answer?

Madison Malone · Answer 1

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