An object A is thrown up with a velocity of 12m/s at the same time an object B of equal mass is thrown down with a velocity of 12m/s.
a. Which object will hit the ground first?
b. How will the final velocities of object A and B compare?
c. Which object will have a greater acceleration?

During the experiment if you could triple the breakaway magnetic force with all other quantities left unchanged, what is the new value for the critical velocity if it was v0 (initial velocity), initially? (b) now if you halved the radius with all other quantities left unchanged, what is the new critical velocity if it was v0 (initial velocity), initially? (c) if during the experiment, critical velocity quadrupled with all other quantities left unchanged, what is the new breakaway force if its magnitude was initially f0,?