Problem 1.3-2 A force P of 70 N is applied by a rider to the front hand brake of a bicycle (Pis the resultant of an even

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Problem 1 3 2 A Force P Of 70 N Is Applied By A Rider To The Front Hand Brake Of A Bicycle Pis The Resultant Of An Even 1 (39.49 KiB) Viewed 31 times

Problem 1.3-2 A force P of 70 N is applied by a rider to the front hand brake of a bicycle (Pis the resultant of an evenly distributed pressure). As the hand brake pivots at A, a tension T develops in the 460-mm long brake cable (A, 1.075 mm²) which elongates by 8-0.214 mm. Find normal stress of and strate in the brake cable. Given. P= 70 N Ae=1.075 mm 2 S = 0.214 MM = 460 мм L Solution ΣΜΑ Σm@A=0 -Tx 35 + Px 75 = 0 T= 2P 2P Ae Ae N/mm² = MPa мра Brake cable, L= 460 mm Hand brake pivot A 37.5 mm پس 50 mm -100m50 75mm € = P (Resultant of distributed pressure) Uniform hand brake pressure coll 은