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An object moving at a constant velocity accelerates at a constant rate of

5.0 m/s^2for a distance of 120 m. At the end of the acceleration, the

object has a velocity of 100 m/s. What was its velocity before

accelerating?


Sagot :

Answer:

70 m/s

Explanation:

v = u + at

100 = u + 5(120/5)

100 = u + 30

u = 70