take air resistance in consideration.
2006-11-16 01:17:02 · 4 answers · asked by Khaleck 1 in Science & Mathematics ➔ Physics
Trick question... all things regardless of weight fall at the same speed. You need to know how big the item is first... this is the only way to calculate resistance.
2006-11-16 01:19:55 · answer #1 · answered by bikeworks 7 · 1⤊ 0⤋
Usually physics problems ignore air resistance because it can be very difficult to calculate accurately. You need to know the air density, which would depend on temperature, water vapor and how about wind direction?
2006-11-16 01:23:07 · answer #2 · answered by rscanner 6 · 1⤊ 0⤋
mass of the object, m = 1215kg
velocity of the falling body = 100km/h = 100*(10/36) = 27.78m/s
Weight = mg
where, m = mass of the body
g = accelaration due to gravity = m/s^2
W = m((m/t)*1/t)
= mv/t
t = 1215/27.78
= 43.74secs
2006-11-16 03:33:25 · answer #3 · answered by Austin 1 · 1⤊ 0⤋
if air resisitance is considered the the time to fall depends on the surface area or the bouyancy force created by the body in the medium.
2006-11-16 02:35:22 · answer #4 · answered by Naveen 2 · 0⤊ 0⤋