Question

A sports car skids off of a wet mountain road at 48.5 m/s and lands in the river, 110

m below the road. How long will it take for the sports car to land in the river?

Answer 1

about 4.74 seconds

Step-by-step explanation:

The time to fall distance d from height h is given by ...

t = √(2d/g)

t = √(2·110 m/(9.8 m/s^2)) ≈ 4.74 s

It will take the car about 4.74 seconds to fall 110 meters to the river.

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We assume the car's speed is horizontal, so does not add or subtract anything to/from the time to fall from the height.