Question

A train travelling at 20 m/s acceleration at 0.5m/s square for 30s.H ow far will it travel in this time.

Answer 1

S=1/2at² + ut
S=1/2 x1/2x 900+ 600
S = 825m

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Answer 2

By using equation
S=ut+1/2(at×t)
$s = 20 \times 30 + \frac{1}{2}(0.5 \times 30 \times 30)$
$s = 20 \times 30 + \frac{1}{2} (450)$
$s = 600 + 225$

$s = 825m$