Free Fall Questions Homework: Gravity, Drag, Force & Parachutes

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Homework Statement



a. Is the downward acceleration value of gravity in Winnipeg acceptable anywhere on Earth? why or why not? How could you test this theory using common technology (no computers)?

b. Does the temperature of air affect the drag on an object? Why or why not?

c. When you drive a car down the highway at 50 km/hr and stick your hand out the window you experience a force. When you are driving at 100 km/hr and stick your (same) hand out the window the force is greater. Explain this phenomenon and state how much larger you expect the force to be.

d. Two football players go skydiving. Assuming one player was a 130 kg OL and one was a 65 kg WR, should both players use the same style of parachute? Why or why not? Comment on safety issues using the concept of terminal velocity. How much bigger must the bigger chute be? Justify!

Homework Equations


The force of gravity in winnipeg is 9.81 N/kg
 
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and so did you try to answer any of these questions?
 
no, i wasn't sure how.