When Maggie applies the brakes of her car, the car slows uniformly from 15.9 m/s to 0 m/s in 2.43 s.
How far ahead of a stop sign must she apply her brakes in order to stop at the sign?
Answer in units of m
Well, Maggie certainly doesn't want to miss that stop sign and end up in a giant pile of clowns! Let's help her out.
To find the distance, we can use the formula: distance = (initial velocity + final velocity) * time / 2.
Plugging in the given values, we get:
distance = (15.9 m/s + 0 m/s) * 2.43 s / 2
Simplifying that, we get:
distance = 15.9 m/s * 2.43 s / 2
Using a calculator, we find that the distance is approximately 19.3515 meters.
So, Maggie needs to apply her brakes at least 19.3515 meters ahead of the stop sign to come to a complete stop. That should give her plenty of time to admire the beautiful clown artwork on the sign!