Question

A runner starts from rest and achieves a maximum speed of 8.85 m/s.

If her acceleration is 9.67 m/s2, how long does it take her to reach that speed?

Answer 1

The appropriate answer is "0.9152 seconds".

Step-by-step explanation:

The given values are:

Maximum speed,

v = 8.85 m/s

Acceleration,

u = 9.67 m/s²

Now,

⇒
`v = u+at`

By putting the values, we get

⇒
`8.85=0+9.67t`

⇒
`t=(8.85)/(9.67)`

⇒
`=0.9152 \ second`