- #1
Mike667
- 14
- 0
Homework Statement
A car with an initial speed of 20 m/s brakes to a complete stop after traveling distance b from the moment the brakes are applied. What would be the minimum braking distance if the initial speed was 60 m/s?
Homework Equations
W= ΔKE
The Attempt at a Solution
I know for a fact that the answer is 9 or 9b. Simply because 60 is 3 times greater than 20. 3^2 is 9. But, I am having trouble solving this with the formula. Can someone help me out here?