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OlgaM077 [116]
3 years ago
5

*PLEASE HELP*

Mathematics
1 answer:
neonofarm [45]3 years ago
6 0
Acceleration = (change in speed) / (time for the change)

change in speed = (20-120)= -100 m/s.

1.5 min = 90 sec

acceleration = -100/90 = -1.11 m/s^2.

We don't care about the 150kg or the 2,500 meters. They don't make any difference.
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3 0
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