SOLUTION: v ²= u ² + 2as Find u when: v= -13 a= -4 s = -15

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Question 1173228: v ²= u ² + 2as
Find u when:
v= -13
a= -4
s = -15
Found 2 solutions by ewatrrr, ikleyn:
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi  

v ²= u ² + 2as

Find u when: v= -13, a= -4, s = -15

169 = u^2 + 120

49 = u^2

u = ±  7 

Wish You the Best in your Studies.

Answer by ikleyn(52879) About Me  (Show Source):
You can put this solution on YOUR website!
.

The correct answer is  THIS :


            There are two solutions for u:     1)   u= 7,     and     2)   u= -7.