Position the fulcrum so that the distance from the fulcrum to the one pound ball is twice the distance from the fulcrum to the two pound ball.
On the side on which the force is being applied, the distance and force are directly proportional. On the other side of the lever, they are inversely proportional. If 1 pound of force is applied to a lever at 1 foot on the left side of the fulcrum, the lever will apply 1 pound of force 1 foot from the right side of the fulcrum. If 1 pound of force is applied 2 feet left of the fulcrum, the lever will apply 2 pounds of force 1 foot from the right side. If 1 pound is applied 4 feet left of the fulcrum, the lever will apply 4 pounds of force 1 foot to the right of the fulcrum. If 1 pound of force is applied 1 foot left of the fulcrum, at 2 feet on the right side, the force will be 1/2 pound. At four feet, it will be 1/4 pound. Etc,
When you use it to pull out a nail, the curved part becomes the fulcrum and the part on the back that you use to pull out the nail and the end you would use to pound the nail in are the two ends of the lever.
6 x 150 pounds. 900 pounds of force would have to be applied.
Mechanical Advantage. Using a lever of appropriate size you could lift a 500 pound load with just 50 pounds of force. The distance from the weight to the Fulcrum would have to be 1/10th the distance from the Fulcrum to you, pushing down with 50 lbs of Force.
3 meters
Assuming the question refers to torque, then 1 ft-lb = 12 in-lbs. If you have a torque wrench reading inch-pounds, divide by 12 to get foot pounds. Conversely, multiply foot pounds by 12 to get inch pounds. If you want to get a little more technical, then read on. Torque quantifies force applied in a twisting action, such as tightening a bolt with a wrench. The longer the lever arm (distance the force is applied from the point of rotation) the greater the torque. This assumes the force is applied in a direction perpendicular to the lever arm, which is the normal case in practice. Formally, the definition of torque is force multiplied by distance, or force acting perpendicular to the lever arm multiplied by the length of the lever arm. If you are doing something like using a torque wrench on a car, you steady the connection of the wrench to the bolt or nut to make sure the force you are applying is perpendicular to the axis define by the length of the bolt. Then the reading on the torque wrench is an accurate measure of the torque applied to the nut or bolt.
for a given lever length the force is (150 / 100) times greater torque = force (pounds) * lever length (feet)
three 8 pound weights
it will not be balance
The most common type of balance scale used for food preparation in large professional kitchens is the 16 pound baker's balance scale.
the lead clearly weighs more...
The handle is the lever which allows you to pull nails or pound a nail with equal ease.