- #1
billybobay
- 13
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Homework Statement
When Bob applies the brakes to his car, it slows uniformly from 20.0 m/s to 0.0 m/s in 4.0 s. How many meters before a stop sign must he apply his brakes in order to stop at the sign?
80 m
60 m
40 m
20 m
Homework Equations
d=(20+0)/2(4)
d= 40 m
The Attempt at a Solution
Bob needs 40 m to stop his car.
Would that be correct?