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The driver of a car slams on the brakes when he sees a tree blocking the...

The driver of a car slams on the brakes when he sees a tree blocking the road. The car slows uniformly with acceleration of −5.00 m/s2 for 4.15 s, making straight skid marks 64.4 m long, all the way to the tree. With what speed (in m/s) does the car then strike the tree? i got 5.14 which is the the right answer

but the second part im lost.. What If? If the car has the same initial velocity, and if the driver slams on the brakes at the same distance from the tree, then what would the acceleration need to be (in m/s2) so that the car narrowly avoids a collision? i need help for the second part of this question

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Answer #1

For Dort2 d 64.4 t: 4.1Ss ヒ 5-14-y 4 IS ラ-. s- -) y: 25.89ms rn 12s 8) 2, 5-20 m.2 2x 64.4

Please let me know if it was helpful. Thank you!

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