shirlsmith72

17.02.2020 • 

Physics

A parachutist relies on air resistance (mainly on her parachute) to decrease her downward velocity. She and her parachute have a mass of 55.0 kg, and at a particular moment air resistance exerts a total upward force of 620 N on her and her parachute.

a. What is the weight of the parachutist?
b. Draw a free-body diagram for the parachutist. Use that diagram to calculate the net force on the parachutist. Is the net force upward or downward?
c. What is the acceleration (magnitude and direction) of the parachutist?

Ответ:

crystaldewar55C

12.11.2020

Physics

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The correct answer for this question is that a statement that can be proven by observation or measurement is known as a fact. The other possible answers here simply refer to idea that different individuals can place value on, but that are not necessarily known to be true.

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