**Explanation:**
Before you press the "Brake" button, the car moves at constant
velocity. You can find the distance traveled during this delay period
by using Equation 2.3. Once the "Brake" button is pressed,
the motion is at constant acceleration. Note that the initial velocity
and final velocity are known. The time is calculated by the applet.
You can use the equations in Table 2.1 to determine the acceleration and
distance traveled by the car during this time interval. You may want
to revisit this applet when you get to Section 4.8. You can then find
the acceleration by determining the friction force and using Newton's second
law of motion. |