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![[Post New]](/templates/default/images/icon_minipost_new.gif) 15 Feb 2007 22:02:05 IST
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No, answer is (A). Surprised! The reason is: as the bicycle moves forward, the particles of the wheel in contact with the road tends to rub the road backward (remember that this is a case of rolling on a frictionful surface). Since the contact particles have a backward velocity, so the frictions act opposite to dis velocity, i.e. in the forward direction. For reference, see H.C. Verma Concepts of Physics Pg.190 Example 27
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Let us build a new world with love, peace, happiness and engineering! (DON'T CHOOSE THE ODD ONE OUT)
Freshman, Bits-Pilani Goa Campus (Msc Physics)
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