Question 188408
Is this the formula:
{{{t = sqrt(2s/9.8)}}}? If so,
t is in seconds and s is in meters.
How long will it take her to free fall 750 meters?
{{{t = sqrt(2*750/9.8)}}}
{{{t = sqrt(1500/9.8)}}}
{{{t = sqrt(153.06)}}}
{{{t = 12.37}}} sec
It will take her 12.37 sec to fall 750 m
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check answer:
{{{t = sqrt(2s/9.8)}}}
{{{12.37 = sqrt(2s/9.8)}}}
square both sides
{{{153.06 = 2s/9.8}}}
Multiply both sides by {{{9.8}}}
{{{2s = 9.8*153.06}}}
Divide both sides by {{{2}}}
{{{s = 1500/2}}}
{{{s = 750}}} m
OK