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Vesnalui [34]
3 years ago
14

Near the surface of the moon, the distance that an object falls is a function of time. It is given by d(t) = 2.6667t2, where t i

s in seconds and d(t) is in feet. If an object is dropped from a certain height, find the average speed of the object from t = 1 to t = 4. (Round your answer to the nearest whole number.)
Physics
1 answer:
Eddi Din [679]3 years ago
6 0

Answer:

averaage speed  is  v = 13 feet / s

Explanation:

 The average speed is the ratio of the distance traveled in a given time interval, let's calculate the distance that the body travels in the two instants of time that give us

   

 t = 1 s

       d (1) = 2.6667 1²

       d (1) = 2.6667 feet

 t = 4 s

       d (4) = 2.6667 4²

       d (4) = 42.6672 feet

Let's calculate the speed

       v = Δx / Δt

       v = (42.6672 -2.6667) / (4-1)

       v = 40/3

        v = 13.33335 feet / s

        v = 13 feet / s

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