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Today's Problem


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Tuesday, 27 november 2012

Bicycle

Proposed by catanedelcuOffline
(23 comments)5.344 times displayed

Asupra unei biciclete obisnuite se actioneaza astfel :

Se leaga o sfoara de pedală,ca in imagine, bicicleta se mentine verticala
actionand cu forte considerate neglijabile in experimentul nostru.

Acum, de sfoara se trage cu o forta F in directia si sensul din imagine
astfel incat bicicleta sa nu patineze brusc spre inapoi
( miscare fireasca in cazul aplicarii unei forte mari )

Intrebare :  In ce directie se va misca bicicleta ?   (fara sa "patineze")

1. Inainte.
2. Va sta pe loc .
3. Inapoi.


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