Question

if s=vot+1/2 at^2,find the value of s when vo=0,t=4and a=5

Answer 1

Heya!
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$= > s = vo.t \: + \frac{1}{2} at {}^{2} \\ \\ \\ = > put \: \: vo \: = 0 \: \: t = 4 \: and \: a \: = 5 \: in \: the \: eq. \\ \\ = > s = 0 \times 4 + \frac{1}{2} \times 5 \times 4 {}^{2} \\ \\ \\ = > s = \frac{1}{2} \times 16 \times 5 \\ \\ = > s = 8 \times 5 \\ \\ = > s = 40$
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Answer 2

here is your answer OK

it's value change and I take best example OK


in this attachment OK .......


Okay, first off I'm more comfortable using the standard notation, s = ut + ½a(t^2)
In order to get here, we have to start with the definition of acceleration, which in itself is pretty straightforward: