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Needing help on question one. I have formulas but am not really sure what goes where.

Needing help on question one. I have formulas but am not really sure what goes where. class=

Verified Answer :

So the equation that you need to use is Vf^2 = Vi^2 + 2 a d .
Vi = 40 m/s
a = 5 m/s^2
d = 165 m
Solve for Vf.
Then, use the equation Vf = Vi + a* t
Vf = what you just solved for. 
Vi = 40 m/s
a = 5 m/s^2
solve for t.

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