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Student Support Forum: 'Help please, Im sure it is easy' topicStudent Support Forum > General > Archives > "Help please, Im sure it is easy"

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John Horbs
02/17/13 1:13pm

Can anybody see what is wrong with this?!

m = 70;
g = 9.81;
s = NDSolve[{x''[t] + x'[t]^2 - mg == 0, x'[0] == 0, x[0] == 30000},
x, {t, 0, 100}]

it gives error:NDSolve::ndnum: Encountered non-numerical value for a derivative at t == 0.`. >>

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Author Date Posted
Help please, Im sure it is easy John Horbs 02/17/13 1:13pm
Re: Help please, Im sure it is easy jf 02/17/13 6:39pm
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