devin125
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What is the greatest acceleration a runner can muster if the friction between her shoes and the pavement is 90% of her weight?
A simple question about the concept please come and help
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devin125
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Doc Al said:What do you think? Hint: Newton's 2nd law.
I dun really get it, for all I understand is only F=ma...
devin125
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Doc Al said:That's Newton's 2nd law. What's the force?
the force is net force, so is it just F-the friction= ma?
devin125
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Doc Al said:Yes. The net force is the friction.
but what is the F in order to minus the friction?
devin125
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Doc Al said:No, the net force is the friction. Just set it equal to ma.
O...I understand now. Thx for helping...
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