EM-140

Substitution

E Math · Secondary 3 · Medium · Substitution

It is given that

T = 4\pi\sqrt{\dfrac{L}{g}}

. Find

T

when

L = 0.81\,\text{m}

and

g = 9.8\,\text{m/s}^2

.

$3.61\,\text{s}$
$0.94\,\text{s}$
$11.35\,\text{s}$
$45.2\,\text{s}$

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