Question

Question 12 1 pts A bicyclist desires to travel at exactly 15 m/s. What angular velocity should he push the pedals? Answer in units of revolutions per minute (RPMs). (39.37 inches = 1 meter, you'll need it) 8.0 in. 13.0 in. 24 in. 2016 Pearson Education, Inc.

Answer 1

sut w R2) RE Ro values; Wo = Wq = of in the above figure, we have we have defined some Vo = speed of bicycle wheel = 15w's angular velocity of bicycle wheel. speed inner circular anis = speed of bicyce cuain = speed of bicycle pedal ater curcunférence Wia augular velocity of pedal # let us first consider the bicycle wheel. velocity of bicycle Vo=u velocity of wheel circunference and vo=Rowo radus angular velocity Ro = 24 win = 12 inch] Ro Ro= of wheel wo ] L .. velocity v = Rowo [ angular velocity of wheel & angular velocity of center axis R = 3 in 1.5 inc will be fame = wo U = Rewo - Rivo Ro " = FRI .Ro CSScanned with CamScanner

relocity of cycle chain = ve velocity of pedal autes eucunference =M = Raw, [ R2 = radius pedal & = wi= vi R uya angular velocity of pehell Choru ju No=15 m = (15 x 37.37) in /sec ulga ( Ri Roo R2 S x 15x39,37 in 1.5 un 12 uh x 4 cm sec الدا 18.45 grades 1 revolution = 27 .. I rew rad. 27 Ф1 = 18.45 revolution qa uq = 2.94 revolution CSScanned With CamScanner per second