Question

The speed (S) an object falls varies directly with time. If the speed is 49.0m/s after 5 seconds, then what is the speed after 3 seconds

Answer 1

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Answer:

29.4 m/s

Explanation:

Speed is proportional to time, so we have ...

speed / time = s/3 = 49/5

s = 3/5(49) = 29.4

The speed of the object is 29.4 m/s after 3 seconds.