A car is moving along a straight horizontal road. The car has 1.6MJ of kinetic energy. The car accelerates for 20s until the kinetic energy of the car increases to 2.5MJ. What is the minimum average power developed by the car engine for this 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,?