Question

A car traveling 6.0 m/s is uninformly accelerating at a rate of 3.0 m/s^2 for 15 seconds. What is it’s final velocity?

Answer 1

The answer to your question is 11.2 m/s

Step-by-step explanation:

Data

Initial speed (vo) = 6.0 m/s

Acceleration (a) = 3.0 m/s²

time = 15 s

Final speed = ?

Formula

d = vot +
`(1)/(2) at^(2)`

vf² = vo² + 2ad

Process

d = (6)(15) +
`(1)/(2) (3)(15)^(2)`

d = 90 + 337.5

d = 427.5 m

vf² = (6)² + 2(3)(15)

vf² = 36 + 90

vf² = 126

vf = 11.2 m/s