A certain car traveling at 15.2 m/s skids to a stop in 29 meters from the point where the brakes were applied. In approximately what distance would the car have stopped had it been going 51.2 m/s?

Adielectric-filled parallel-plate capacitor has plate area a = 30.0 cm2 , plate separation d = 9.00 mm and dielectric constant k = 3.00. the capacitor is connected to a battery that creates a constant voltage v = 15.0 v . throughout the problem, use ϵ0 = 8.85x10-12 c2/n.m2 . find the energy u1 of the dielectric-filled capacitor.