Question

A car accelerates at `3` `m``/s^2` for `10` seconds. If it started with a velocity of `20` `m``/s`, what is its final velocity?

Answer 1

`v_f=50 m/s`

Explanation:

`v_f=v_i+a*t`

`v_i:"initial velocity"`
`a:"acceleration"`
`t:"time"`
`v_f:"final velocity"`

`v_i=20m/2`

`a=3m/s^2`

`t=10s`

`v_f=20+3*10`

`v_f=20+30`

`v_f=50 m/s`