plZ solve it.............i will mark as brainliest answer
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plZ solve it.............i will mark as brainliest answer
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s=ut-1/2 gt^2
substitutide in
u=10 m/s
s=-390m
so the equation will be
-5t^2 +10t +390 =0
the answer ;
9.89s
& -7.89(rejected bcz time never negative)