How would you weigh an aeroplane
A common brain teaser used in some job interviews... how would you weigh an aeroplane without scales?
Unless you're going for a role which requires you to weigh aeroplanes, this question is likely to be more about evaluating your 'out of the box' thinking.
- Put the aeroplane on a ship and see how far it submerges into the water. Mark the point on the side of the ship, then take the plane off and put weights on the ship and see how many are needed before the ship submerges to the same point
- Use the tire pressure, tire surface area touching the ground, physics formula Pressure = Force / Surface Area; etc
- Newtons second law
Any other ideas? Let us know in the comments.