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OpenStudy (austine736):
Jack took 5.5 seconds to fall down the hill. His initial velocity was 0.5 meters per second. His final velocity was 2.5 meters per second. Calculate his average acceleration.
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OpenStudy (alekos):
use the formula Vf = Vi + at
OpenStudy (austine736):
huh?
OpenStudy (alekos):
re-arrange the formula to make "a" the subject
OpenStudy (austine736):
still no clue
OpenStudy (alekos):
Vf = final velocity Vi = initial velocity t = time a = acceleration does that help?
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OpenStudy (austine736):
yep
OpenStudy (alekos):
OK, go for it
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