Question

the correct answer is listed below please show the work for how to get the answers

The picture below shows a pulley with an axel. There is a force, Fr = 20.0N accelerating the pulley. The force of friction between the axle and the pulley is Fir = 10.0milliN with an axle radius of 0.6cm. The mass of the pulley is 2.0kg, and it's radius is Ro = 500.0cm. (a) What is the angular acceleration of the pulley? (b) What is the acceleration of a point on the edge of the pulley? Answer all questions to 3SigFigs with units. Answer (a) .002*rad/s^2 Your last answer was interpreted as follows: 0.002 rad/s" The units found in your answer were: [rad, s] Answer (b) 1.00*rad/s^2 Your last answer was interpreted as follows: 1.00 rad/s? The units found in your answer were: [rad, s)

Answer 1

tt = 20N , Flv = 10x10-3 N= 0.01N, m= 2K9, Ro - 5 m , r=0.6cm (a) using Newton's law: Fr Ro-Fr 8=I& Where I= ImRo? for pulley .: 2045 - 0.0140.006 = 1* 225* 252= 99.999994 2= 3.999 2 4 radls2 K= 4 radlo | a= R L = 5*4 = 200182 a=20m/12 L