Forces, stopping and braking

Easy

A cyclist is riding at a constant velocity when they suddenly see a hazard on the path ahead.

The cyclist applies the brakes to come to a complete stop as quickly as possible.

Figure 1 shows the velocity-time graph for the bicycle starting from the moment the cyclist spots the hazard.

Figure 1: Velocity-time graph for a bicycle stopping

Which of these is the cyclist's reaction time shown in Figure 1?

$s0\text{ s}$

$s0.6\text{ s}$

$s2.0\text{ s}$

$s2.6\text{ s}$

Forces, stopping and braking Questions