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A roller coaster moves slowly at the top of a hill and increases as it moves down the hill increasing its kinetic energy. Where did this increasing kinetic energy come from?

a. The people and their belongings in the cars
b. The wind behind the cars
c. potential energy was transformed into kinetic energy
d. kinetic energy was added by a motor pushing the cars

Sagot :

raqueljuliet987

Answer:

d

Explanation:

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