Two collars A and B that slide on vertical rods with negligible friction are connected by a 30-in. cord that passes over a fixed shaft at C. The coefficient of static friction between the cord and the...

Two collars A and B that slide on vertical rods with negligible friction are connected by a 30-in. cord that passes over a fixed shaft at C. The coefficient of static friction between the cord and the fixed shaft is 0.30. Knowing that the weight of collar B is 8 lb, write a computer program and use it to determine, for values of u from 0 to 60° and using 10° increments, the largest and smallest weight of collar A for which equilibrium is maintained.