Ms. Lawrence rode her bike up a hill at 8 miles per hour. She rode her bike down the hill at 16 miles per hour. What is the best prediction of her kinetic energy? KE= 1/2 mv^2
A. She had 4 times the kinetic energy going downhill as she d going uphill.
B. She had half the kinetic energy going downhill as she had going uphill.
C. She had the same amount of kinetic energy going uphill and downhill.
D. She had 2 times the kinetic energy going downhill as she had going uphill.