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A paper airplane is thrown at a height of 100 cm and a velocity of 990 meters per hour how much seconds will it take for the airplane to reach the ground?

Guest Feb 25, 2017
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 #1
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It will take 3.6 seconds for it to reach the ground 

Guest Feb 25, 2017
 #3
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100cm =  1m

 

1  =  (9.81) t^2

 

1/9.81   =  t^2

 

t ≈  .319  sec 

 

 

cool cool cool

CPhill  Feb 25, 2017

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