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anonymous
 one year ago
I know that
0=(20.0m/s)t  4.90m/s^2)t^2
=t(20.0m/s  4.90m/s^t)
is equal to t = 4.08 but how do you do that?
anonymous
 one year ago
I know that 0=(20.0m/s)t  4.90m/s^2)t^2 =t(20.0m/s  4.90m/s^t) is equal to t = 4.08 but how do you do that?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.00 = 20t  4.9t factor 0 = t(20  4.9t) split into 2 equations (b/c zero product property) t = 0 20  4.9t = 0 add 4.9t to both sides 20 = 4.9t divide by 4.9 4.08 = t
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