If a car is driving down a hill at 1.5 km an hour and the hill is 3 km long how long will it take for the car to get to the bottom

Question

29-07-2015
Physics

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If a car is driving down a hill at 1.5 km an hour and the hill is 3 km long how long will it take for the car to get to the bottom

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AL2006 AL2006 · Answer 1 · 2015-07-29T04:07:59+02:00

      Distance = (speed) x (time)

Divide each side by (speed):    Time = (distance) / (speed) =

   (3 km) / (1.5 km/hr) = 2 hours

If the driver is in a hurry and can't wait 2 hours to get to the bottom,
he should get out and walk. Average adult walking speed is a bit
more than 3 times as fast as 1.5 km/hr.