1. When the speed of your car is doubled, by what factor does its kinetic energy increase?...

Question:

1. When the speed of your car is doubled, by what factor does its kinetic energy increase?
(a) √2.
(b) 2.
(c) 4.
(d) 8.
2. A car traveling at a velocity v can stop in a minimum distance d. What would be the car's minimum stopping distance if it were traveling at a velocity of 2v?
(a) d.
(b) √2d.
(c) 2d.
(d) 4d.
(e) 8d.