Question

A LADYBUG FALLS INTO A SMALL HOLE .IT TAKES 8.6s FOR THE LADYBUG TO HIT THE BOTTOM . HOW DEEP IS THE HOLE?

Answer 1

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HERE IS YOUR ANSWER



FIRSTLY , RECALL THE DISPLACEMENT-TIME EQUATION :


$d = vit + \frac{1}{2} at ^{2}$
SUBSTITUTE KNOWN VARIABLES INTO THE EQUATION :


$d = (0)(8.6) + \frac{1}{2} (9.8)(8.6) ^{2}$


SOLVE FOR DISPLACEMENT :


$d = 362.4m$

Answer 2

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