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#1
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how do i calculate this?
in physics we have to calculate a hang time for when people jump using their
average jump and i dont know how too. He said to do something like this: =SQRT(2*average jump G4/9.8)*2 but everytime i use it, it doesnt work. please help me thanks |
#2
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how do i calculate this?
Enter the (average) Jump height (in meters) in the cell A and paste this
formula in B1 to get the (average) hang time... =2*SQRT(2*A1/9.8) since g=9.8 m/s*s "cheypie1000" wrote: in physics we have to calculate a hang time for when people jump using their average jump and i dont know how too. He said to do something like this: =SQRT(2*average jump G4/9.8)*2 but everytime i use it, it doesnt work. please help me thanks |
#3
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how do i calculate this?
Hi,
In general a falling body starting from rest and accelerating under the influence of gravity obeys the following formula: S=1/2gt^2 distance = 1/2 * 9.8m/ss * (time)^2 where ^ means squared. solving the above for t gives t = (2*S*9.8)^2 or t = SQRT(2*S*9.8) Of course I'm not sure how this has relevence to hang time, since I assume that relates to falling through air, in which case air resistance becomes an important factor even if no parachute is open. The above solution is for free fall in a vacumn. For example, a free falling person in the atmosphere reaches a terminal velocity because of air resistance, while the above formula assumes no such factor. -- If this helps, please click the Yes button. Cheers, Shane Devenshire "cheypie1000" wrote: in physics we have to calculate a hang time for when people jump using their average jump and i dont know how too. He said to do something like this: =SQRT(2*average jump G4/9.8)*2 but everytime i use it, it doesnt work. please help me thanks |
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