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anOldMan

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**[SOLVED] Physics 11 Speed and acceleraton**

## Homework Statement

Linda sees an elephant dart into the road 50.0m ahead of her car while she is driving at 65km/hr. She slams on her brakes, which decelerate the car at the rate of -5.80m/s^2. Will she be able to avoid hitting the elephant? Find her stopping distance.

Answer is Yes, stopping distance is 28.1

## Homework Equations

## The Attempt at a Solution

65km/hr = 18.056m/s [tex]V_{avg}9.028[/tex]

a = v / t -5.80m/s^2 = 9.028m/s / T = 1.56 seconds

using [tex]d = v_{0}t+.5at^{2}[/tex]

d = .5(-5.80m/s^2) (2.43s^2) = 7meters

I am missing something here.

Thanks for the help on the previous question and thanks for any help for this question. Your quick response is appreciated.