Question

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.

Answer 1

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.