PHYSICS -The driver of an SUV slammed on the breaks when he saw a tree 52 m away

bebe

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blocking the road.? The SUV slowed down at a constant rate of 4.0 m/s2 for 3.6 s before reaching the tree.
a.What was the initial speed of the SUV?
b.With what speed does it strike the tree?

please help.. thank you in advance
 
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