Answer:
c. The book has potential energy and the bike has kinetic energy.
Explanation:
Answer:
C (third one down).
Explanation:
Always take a look at the formulas.
KE = 1/2 mv^2
PE = mgh
What the KE formula is telling you is that there is motion (v). Only one of the two objects is moving -- the bike.
The PE formula has a weight that (if it is helped) is capable of falling a distance h. The book has a PE value.
The answer is C