Jo, with a reaction time of 0.2 second, rides her bike at a speed of 9.0 m/s . She encounters an emergency situation and "immediately" applies her brakes. How far does Jo travel before she actually applies the brakes?

Express your answer with the appropriate units.

To calculate the distance Jo travels before applying the brakes, we can use the equation:

distance = speed * time

First, let's convert Jo's reaction time from seconds to seconds, since the speed is given in meters per second:

0.2 second = 0.2 s

Now, we can calculate the distance:

distance = 9.0 m/s * 0.2 s
distance = 1.8 m

Therefore, Jo travels 1.8 meters before she actually applies the brakes.