- #1
beck blackfire
- 1
- 0
Homework Statement
My teacher keeps saying we can't have negative times because they don't exist and when I do these questions I get negatives and can't understand them at all, can someone help me?
1. How long does it take to slow a car from 10m/s to rest at a rate of -1.75m/s^2?
2.How long does it take to slow a car going 35m/s to 15m/s at an acceleration of -3.75m/[/B]
Homework Equations
t=v/a
The Attempt at a Solution
1)t=v/a
t=10/-1.75
t=-5s
2) I can't understand it almost at all