When maggie applies the brakes of her car, the car slows uniformly from 15.0 m/s to 0 m/s in 2.50 s. how many meters before a stop sign must she apply her brakes in order to stop at the sign?

Question

Mathematics

Raina Hooper

21 March, 23:59

When maggie applies the brakes of her car, the car slows uniformly from 15.0 m/s to 0 m/s in 2.50 s. how many meters before a stop sign must she apply her brakes in order to stop at the sign?

+4

Answers (1)

Know the Answer?

Dustin Myers · Answer 1

In this question, we can determine Maggie car initial speed (15m/s), final speed (0m/s) and the time her car moves (2.5s). Then to calculate the distance she travels, we need to multiply the average speed with time. The equation would be:

Distance traveled = (initial speed+final speed) / 2 x time

Distance traveled = (0m/s + 15m/s) / 2 x 2.5 second = 7.5m/s x 2.5s = 18.75m