Problem 1 (multiple parts) The Dynamics Squad is at it again with more experiments. Thin disk C weighs Wc = 30 lb, is diameter dc = 3 ft, has radius of gyration of kc = 1.25 ft, and is attached to block A (W₁ = 75 lb) by an inextensible, massless cable passing over a frictionless and massless sheave B. The block is on a surface of slope 0 = 55° and coefficient of kinetic friction M = 0.25. The friction between the disk and surface is sufficient so it will roll without slipping. It is released from rest and begins to move. 0 Determine: a) the acceleration of the block b) the tension in the cable c) what changes if the sheave has mass? (describe how you'd solve this) B A

Problem 1 (multiple parts) The Dynamics Squad is at it again with more experiments. Thin disk C weighs Wc = 30 lb, is diameter dc = 3 ft, has radius of gyration of kc = 1.25 ft, and is attached to block A (W₁ = 75 lb) by an inextensible, massless cable passing over a frictionless and massless sheave B. The block is on a surface of slope 0 = 55° and coefficient of kinetic friction M = 0.25. The friction between the disk and surface is sufficient so it will roll without slipping. It is released from rest and begins to move. 0 Determine: a) the acceleration of the block b) the tension in the cable c) what changes if the sheave has mass? (describe how you'd solve this) B A