Physics, 05.10.2019 18:30 desteyness8178
How long is tina, a ballerina, in the air when she leaps straight up with a speed of 1.8 m/s?
Answers: 2
and constant acceleration 
downward (acceleration due to gravity). Its position at time t is given by the equation:
is the initial height, so we can remove it from the equation:
:
--> time at which Tina starts its motion, so we don't consider this one
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How long is tina, a ballerina, in the air when she leaps straight up with a speed of 1.8 m/s?...
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