What's the top speed on your car?

[95mustanggt]

Originally posted by dinomite:
Aerodynamics is a bigger factor than weight in top speed, but think of it this way: What is *your* top speed? now put on a 50 lb. backpack.....

Incorrect. If you look at the physics in running, your legs must "push" your body up and forward. Completely different force diagram.

Weight has little to do with top speed. Although I guess if you got real picky you could argue that a higher downward force would contribute to higher frictional forces which would lower your top speed. But then again, the same would be true if you put on wider tires, softer rubber tires, etc.

Unit has the correct analysis here.

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1995 Mustang GT