Answered

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A car accelerates to a speed of 55 m/s within the span of 8 seconds. If its acceleration
was 4 m/s2, what was its initial velocity? Show all work and units for full credit.

Sagot :

samueladesida43

The initial velocity of a car that accelerates to a speed of 55 m/s within the span of 8 seconds is 23m/s.

How to calculate initial velocity?

The initial velocity of a moving body can be calculated using the following formula:

a = v - u/t

Where;

  • a = acceleration (m/s²)
  • v = final velocity (m/s)
  • u = initial velocity (m/s?
  • t = time (seconds)

According to this question, a car accelerates to a speed of 55 m/s within the span of 8 seconds. If its acceleration was 4 m/s², the initial velocity is calculated as follows:

4 = 55 - u/8

32 = 55 - u

u = 55 - 32

u = 23m/s

Therefore, the initial velocity of a car that accelerates to a speed of 55 m/s within the span of 8 seconds is 23m/s.

Learn more about initial velocity at: https://brainly.com/question/18084516

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