Answer to Question #229361 in Civil and Environmental Engineering for Luu

Question

A pulley (A) diameter 300m is accelerated by means of a belt drive from 60rpm to 240rpm during 360 revolutions. Attached by means of a belt is another pulley (B) with diameter 200mm. Calculate

a) the angular acceleration of each pulley

b) the initial and final velocity of the smaller pulley (B) in rad/s

Answer 1

a) Angular acceleration of Pulley A = 75rev/m²

Angular acceleration of Pulley B = 112rev/m²

b)Initial Velocity = 18.8496rad/s

Final Velocity = 37.6991rad/s