Cart raising a load#

Question Text#

Determine the magnitude of the total velocity of $$B$$ as cart $$A$$ moves to the right with $$v = {{params.v_a}}m/s$$. Assume the cable for $$B$$ remains vertical, and the diameter of the pully is negligible. Assume $$x = {{params.x}}m$$, and $$h = {{params.h}}m$$.

Please enter an integer value in $${{ params.vars.units }}$$.