Answered

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A roller-coaster goes over a 12 m tall hill then approaches a 30 m hill. What is the minimum velocity the roller-coaster would need when going over the 12 m hill to make it to the top of the 30 m hill?

254.8 m/s

15.96 m/s

Not enough information to answer

18.78 m/s

Sagot :

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