1. The problem statement, all variables and given/known data 2. Relevant equations P = T*V F=ma 3. The attempt at a solution My approach was this: Using the pin at C as a datum, I figured that DB=CD and thus 2CD + AC = l. Thus I figured that at 3 ft/s, A was rising 3/2 feet per second. However, I also figured the it would just be (3/2=v)(F=force required to keep box from accelerating, as the speed is constant.) I'm apparently wrong about this. The book gives the equation: T1 - 100 = 0 100 + 100 -T2 = 0 ...I take it T2 is on the motor, but, I'm not sure. Could someone please give me a hint about the tensions? These pulley problems have been killing me even where everything else is easy!