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car slowing down with constant acceleration

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The driver of a car slams on the breaks when he sees a tree 52m away blocking the road. The SUV slowed down at a constant rate of 4.0m/s^2 for 3.6s before reaching the tree.
a) What is the initial speed?
b) At what speed does it strike the tree?

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Solution Summary

This solution determines the initial speed of the car and the speed when it strikes the tree, respectively.

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Let v0, vf be the initial speed and final speed when the car hits the tree, ...

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