- #1
genneth
- 980
- 2
A large passenger jet is standing on a runway. You have a toolbox, filled with some typical tools -- perhaps one that could be used to repair a bike or a car or something. How do you find the weight of the plane?
cyrusabdollahi said:Err, couldn't you just weight the airplane w/o the tool box? What would be the point of taking the difference?
:rofl: It wouldn't take off! :tongue:cyrusabdollahi said:What if this airplane were on a conveyor belt on takeoff?
I'm afraid it's already too late. I posted it myself. If you have an incorrect answer you would like to post, do so at your convenience.genneth said:How long should I wait before writing down the "correct" answer?
Rogerio said:I think the first step would be measuring the pressure of the tires...
genneth said:A large passenger jet is standing on a runway. You have a toolbox, filled with some typical tools -- perhaps one that could be used to repair a bike or a car or something. How do you find the weight of the plane?
student85 said:Measure tire pressure. Then take a pencial a draw the outline of the area of each tire in contact with the ground. make the plane move and calculate the area of each area you outline. Then the force exerted by the plane on the ground would be the pressure of each tire multiplied by its corresponding area of contant to the ground. Sum all three forces. Divide this by 9.81 and get the mass.
Don't you need to adjust for the stand-alone tire pressure (i.e., deadweight pressure)?student85 said:Measure tire pressure. Then take a pencial a draw the outline of the area of each tire in contact with the ground. make the plane move and calculate the area of each area you outline. Then the force exerted by the plane on the ground would be the pressure of each tire multiplied by its corresponding area of contant to the ground. Sum all three forces. Divide this by 9.81 and get the mass.