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PES Skill Sheets.book - Capital High School

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Page 3 of 3<br />

Time from velocity<br />

Time from distance<br />

Original equation Rearranged equation to solve for time<br />

v = v0+ gt<br />

t =<br />

v – v0 ------------g<br />

y<br />

1<br />

--gt<br />

2<br />

2<br />

= t =<br />

2y<br />

----g<br />

7. At about 55 meters per second, a falling parachuter (before the parachute opens) no longer accelerates. Air<br />

friction opposes acceleration. Although the effect of air friction begins gradually, imagine that the parachuter<br />

is free falling until terminal speed (the constant falling speed) is reached. How long would that take?<br />

8. The climber dropped her compass at the end of her 240-meter climb. How long did it take to strike bottom?<br />

4.3

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