@sdw8253 try drawing it out, and read my explanation carefully. Note that POAB is a trapezoid, where AB is half of the “straight” part of the pulley (which is what you want to figure out).
@sdw8253 try drawing it out, and read my explanation carefully. Note that POAB is a trapezoid, where AB is half of the “straight” part of the pulley (which is what you want to figure out).