Can anyone help me figure out this question? I swear this isnt homework! Im actually from a car forum and would like to understand some basic principles behind car engine pulleys. Pulley A drives another pulley Bx via a belt. Pulley A diameter:15inches weight: 1lbs applied torque: 10lbs*1inch Pulley B1 diameter: 5inches weight: 0.5lbs Pulley B2 diameter: 5inches weight: .75lbs Pulley B3 diameter: 7inches weight: .25lbs Pulley B4 diameter: 7inches weight: .75lbs Which of the Bx pulleys will require more torque from Pulley A to rotate? How do you figure this out? What is the resulting torque on each of the Bx pulleys? thanks a lot!