Question

a car with an initial speed of 4.30m/s accelerates uniformly at the rate of 3.00 m/s find the final speed after 5.00 s

Answer 1

The car's velocity at time
`t` is given by

`v=v_0+at`

where
`v_0` is its initial velocity and
`a` is its acceleration. After 5.00 seconds, we have

`v=4.30\,(\mathrm m)/(\mathrm s)+\left(3.00\,(\mathrm m)/(\mathrm s^2)\right)(5.00\,\mathrm s)`

`\implies v=19.3\,(\mathrm m)/(\mathrm s)`

and thus a final speed of 19.3 m/s as well.