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An object has an initial velocity of 15 m/s and a constant acceleration of 4 m/s2. How long will it take before its final velocity is equal to three times its initial velocity?

Sagot :

Lanuel

Based on the calculations, it would take 7.5 seconds before the final velocity of this object would be equal to three times its initial velocity.

Given the following data:

  • Initial velocity = 15 m/s.
  • Constant acceleration = 4 m/s².
  • Final velocity = 3 × 15 = 45 m/s.

How to calculate the acceleration of an object?

Mathematically, acceleration can be calculated by using the first equation of motion:

v = u + at

Where:  

  • v is the final velocity.
  • u is the initial velocity.
  • t is the time measured in seconds.

Making t the subject of formula, we have:

t = (v - u)/a

Substituting the given parameters into the formula, we have:

t = (45 - 15)/4

t = 30/4

t = 7.5 seconds.

Read more on acceleration here: brainly.com/question/24728358

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