A car moves with an average speed of 45 miles/hour. How long does the car take to travel 90 m

A. 2 minutes

B.

2 hours

C. 45 minutes

D. 45 hours

E

90 minutes

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The passengers in a roller coaster car feel 50% heavier than their true weight as the car goes through a dip with a 10 m radius of curvature. What is the car's speed at the bottom of the dip?

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