ME 203 Exam

Summer 2016 Exam 2 Problem 1

I was wondering if the equation for the velocity of block B would be different than the equations for velocity of pulleys? I’m not sure if you simply add the velocities of the strings or if you use V1+V2=2Vb to solve for the velocity of the block (Vb).
United States
The velocity of the block is equal to the velocity of the cable on the left of the pulley A as well as the velocity of the center of the lower pulley.
Awesome, thank you!