Why is it difficult to use the law of conservation of energy to calculate the
effects of a collision?
O
A. Energy is not conserved.
O
B. Energy is only conserved during perfectly inelastic collisions.
O
C. The kinetic energy of the objects is converted to other forms of
energy
O
D. Energy is destroyed during a collision,

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,?