Thread: Discussion Thrust and movement
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Old Jan 24, 2013, 09:24 PM
pyrohaz is offline
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I'm not too up on mechanics but I know that the hardest part will be overcoming the static friction.

Knowing that F=uN (u being coefficient of friction)

The coefficient of friction for a ball bearing is apparently around 0.0015,

N=mg with no vertical net force so n = 80*9.81 = 784.8N

Now knowing that the only main opposing force is friction (not accounting air resistance which is pretty mega), Fr = 0.0015*784.8 = ~1.2N which seems awfully small!
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