Question

With an average acceleration of `-1.2` `m``/``s^2`, how long will it take a cyclist to bring a bicycle with an initial speed of `6.5` `m``/``s` to a complete stop?

Answer 1

time =5.41s

Explanation:

`a=-1.2m/s^2`
`v_i=6.5m/s^2`
`v_f=0`
`Delta t`=?

we use formula

`a=(v_f-v_i)/t`

`-1.2=(0-6.5)/t`
`t=5.41s`