Perserance rover landed on Mars soil last February 18, 2021. When a spacecraft enters the atmosphere of the plane Mars, it is said to be in the gravitational field of Mars. The mass of the spacecraft is 100 kg. At one point, when the spacecraft is descending, the gravitational field strength of Mars is 3.0 N/kg and the total upward force on the spacecraft is 400 N. Calculate:
a.) the weight of the spacecraft, (3 points)
b.) the resultant force acting on the spacecraft, (3 points)
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a)100kg please thank me for this question
b)the decrease in gravational force
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