Hey. go here: http://www.mrfizzix.com/playground/page_3.htm
you should be able to understand it now. basically you'll find that:
(m1) (g) (d1) = (m2) (g) (d2) m1 = the mass of the first person d1 = distance the first person is from the pivot point m2 = the mass of the second person d2 = distance the second person is from the pivot point g = -9.8 m/s/s :)
75kg x 1.5m= 112.5 65 x X= 112.5,
X= 112.5/65 X= 1.73meters And if you convert Kilo. into Newtons first, you will get the same answer.
Simple ..put equal weight at each end, equal distance from the pivot.
if seesaw is balanced under its own weight with no added mass on it you cannot balance on one side. If it is unbalanced under its own weight u can add mass to balance on one side with mass depending on distance to pivot
600 * 6 / 9 = 400 newton
A seesaw would be a Class 1 lever. This is because the fulcrum(also known as a pivot) is in the middle of the load and effort.
they have the same density That would be impossible. The only way to stop moving is to push down with you're feet each time you reach the ground
-L_1 * w
Put the same amount of weights at the same distance away from the pivot.
The see-saw needs to balance so the force on wither side of the pivot needs to be equal. The turning force is calculated by distance from pivot (in metres) by force. The side with the largest turning force will be lower than the other. If they are equal then the see saw will balance.
A seesaw would be a Class 1 lever. This is because the fulcrum(also known as a pivot) is in the middle of the load and effort.
Same thing as a seesaw. See the Related Link below for pictures.
fulcrum
You must be sitting twice as far away from the pivot, on your side, as your sister is on her side.