# The jet flew a distance of 2,700 km in 1 hour. in the opposite direction its speed was 715 m / s.

December 29, 2020 | education

| **The jet flew a distance of 2,700 km in 1 hour. in the opposite direction its speed was 715 m / s. how much m / s was its initial speed high?**

Note that the way there (S1) and the way back (S2) will be the same.

Let’s find the speed on the path S1:

V1 = S1 / t1 = 2700/1 = 2700 km / h = 2700000/3600 = 750 m / s

V2 = 715m / s.

Delta V = 750-715 = 35m / s

Answer: The initial speed was 35 m / s higher

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