In 1986, the first flight around the globe without a single refueling was completed. The aircraft’s average speed was 186 km/h.
If the airplane landed at this speed and accelerated at −1.5 m/s2 , how long did it take for the airplane to stop?
1 answer:
Answer: 34.4 sec
Explanation: Assuming that the desacceleration was constant, we have a = -1.5m/s²
vi = 186 km/h → 51.6 m/s
vf = 0 (because it stopped)
Vf = Vi + at
0 = 51.6 - 1.5t
1.5t = 51.6
t = 34.4 s
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