Answer: A at he bottom of the first hill your kinetic energy of a roller coaster is at its highest.
Explanation: as the roller coaster goes down it has more energy to go because it the first hill, and as it keeps going it losses kinetic enrgy thats why it slows down.
Answer:
D
Explanation:
Its simple when u break down the question.
Hope this helps!!!
Are talking about on a piano?
Answer:
its both
Explanation:
he had developed plans for his own vehicle