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madreJ [45]
2 years ago
9

A car is travelling at 20m/s, accelerates at 4m/s2 . Calculate its velocity after 5s?

Physics
1 answer:
IgorLugansk [536]2 years ago
5 0

Answer:

<u>40 m/s</u>

Explanation:

The final velocity of an object that experiences a period of acceleration is given by:

v - vi = A*t

Initial velocity, vi, is = 20m/s

Acceleration, A, is 4m/2^2

Time, t, is 5 seconds

v - vi = A*t

v - 20m/s = (4m/2^2)/(5 sec)

v = (20 m/s) + (20 m/s)

v = 40 m/s

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