In a bicycle the radius of rear wheel is twice the radius of the front wheel. If rf and rr are the radii vf and vr are the speeds of top most points of wheels, then?

In a bicycle the radius of rear wheel is twice the radius of the front

1.	In a bicycle the radius of rear wheel is twice the radius of the front wheel. If r_f and r_r are the radii v_f and v_r are the speeds of top most points of wheels, then?
A.	v<sub>r</sub>=2v<sub>f</sub>
B.	v<sub>f</sub>=2v<sub>r</sub>
C.	v<sub>r</sub>=v<sub>f</sub>
D.	v<sub>r</sub> is lesser than v<sub>f</sub>
Answer» D. v<sub>r</sub> is lesser than v<sub>f</sub>

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In a bicycle the radius of rear wheel is twice the radius of the front wheel. If rf and rr are the radii vf and vr are the speeds of top most points of wheels, then?

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In a bicycle the radius of rear wheel is twice the radius of the front wheel. If r_f and r_r are the radii v_f and v_r are the speeds of top most points of wheels, then?