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KATRIN_1 [288]
3 years ago
12

a manned rocket accelerates at a rate of 20 m/s2 during launch How long does it take the rocket reach a velocity of 400 m/s?

Mathematics
1 answer:
marshall27 [118]3 years ago
6 0

Answer:

Step-by-step explanation:

acceleration, a = 20 m/s^2

initial velocity, u = 0 since it starts from rest

final velocity, v = 400 m/s

v = u + at

400 = 0 + 20 t

400 = 20 t

t = 400 / 20

<u><em>t = 20 sec</em></u>

Hope this helps

plz mark as brainliest!!!!

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2) Some whole numbers are not irrational numbers.

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