Why Can You Exert A Greater Force On The Pedals Of A Bicycle If You Pull Up The Handlebars?
Monday, December 14th, 2009 at
8:06 pm
This is a physics question that relates to Newton's Third Law. Any help would be appreciated!
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When you apply an upward force on the handles, the bike applies a downward force on you and you can transfer it to the pedals. So the “bike” applies a force to the pedals,
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see when the frictional force acts on the tyre while turning then the car body tries to push the car out of track but this frictional force keeps the car in the track by creating a ooposite force eventually overcoming the centrifugal force of the car body…
as we know that centripetal force force and centrifugal force act kind of in opposite way so, as centrifugal force tries to tkae the car away from the track, the centripetal force(created by the tyres) keeps the car in track…
if you like the ans then plz give a best answer….
thanks with love
i could be wrong, but i think there are 2 adjusters on the tensioner pulley. one is on a spring loaded cam, and the other is on a pivot and a elongated slide hole in the bearing. get a manual if you insist on doing it yourself. if you get something wrong, you could cause major engine damage, so get a step by step manual on this repair, and follow it carefully. a little extra time and money will save a huge headache later.
the equilibrium condition requires that the vertical component of the force N exerted by the road balances the weight, whereas the horizontal component gives the centripetal acceleration needed to racing on a circle
then
N*sin(theta)=m*v^2/R
N*cos(theta)=mg
therefore
v^2/(Rg)=tg(theta)
v= sqrt(Rg*tg(theta))=7,3 m/s <—- or 26,3 km/h
- Nice. But something looks wrong with the pedals
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mass and acceleration. F=MA
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