Question

A vehicle travelling at 40 m/s for 20 seconds what is the final speed ?

Answer 1

Answer:

final speed is 2 m/s

Step-by-step explanation:

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Answer 2

Answer:

Time (t) = 10 seconds

Accelerartion (a) = 2.5 m/s

We know v = u + at

⇒40 m/s = u + 2.5 m/s

⇒ 40 m/s = u + 25 m/s

⇒ u = (40 - 25) m/s

= 15 m/s

∴ initial velocity of the car = 15 m/s

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