In class today we explored the idea that terminal velocity is the fastest free fall speed that an object can obtain due to air resistance. In class we examined the attributes of parachutes to lower the terminal velocity of someone who jumps out of a plane. Since not all objects have the same terminal velocity, people have gone to great lengths to learn about how to make skydive jumps even faster. The video below is from National Geographic and was posted to YouTube.
We also looked at the role of gravity in determining the force on objects. This will be very important when looking at the bridge design activity later this week. Bridges not only have to be engineered to withstand the weight of the cars, trucks, and trains traveling across them, but they must also endure the force of gravity due to their own mass.
Update:
Homework:
Due Thursday:
F6 Homework: Understanding Forces!
Bridge Building begins this week!
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