Question: A bicycle rider would like to compare the effectiveness of cantilever hand brakes [see figure part (a)] versus V brakes [figure part (b)]. (a) Calculate

A bicycle rider would like to compare the effectiveness of cantilever hand brakes [see figure part (a)] versus V brakes [figure part (b)].
(a) Calculate the braking force RB at the wheel rims for each of the bicycle brake systems shown. Assume that all forces act in the plane of the figure and that cable tension T = 45 lbs. Also, what is the average compressive normal stress Ïƒc on the brake pad (A = 0.625 in.2)?
(b) For each braking system, what is the stress in the brake cable (assume effective cross-sectional area of 0.00167 in.2)?
(a) Cantilever brakes

(b) V breaks

45 in DCv TDE TDE 90 TDcl n. in Pivot points anchored to frame 4 in. 4.25 in RB l in. HA Pivot points anchored to frame

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