hiwotabeje3 hiwotabeje3

22-02-2022
Physics

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6. An aircraft decelerates at 0.5 m/s2. After 8 minutes its velocity has dropped to 160 m/s. Find its initial velocity

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indrawboy indrawboy

22-02-2022

vf²=vi²+at

t = 8 min = 480 s

decelerates = a = - (negative sign)

input the value:

160²=vi²-0.5 x 480

25600 = vi²-240

25840 = vi²

vi = 160.75 m/s

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