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How many pounds of force must a man exert on one end of a 10 ft lever to lift a 200 lb rock on the other end if the fulcrum is 2 ft from the rock?
Wiki User
∙ 10y ago
to balance moment
10 feet x force = 2 feet x 200
force = 40 pounds
Wiki User
∙ 10y ago
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What does fulcrum mean in math?
Fulcrum is the point that a lever rests or is supported.
What does a lever look like?
A lever is like a pole with a fulcrum. Here is a picture: ---------------------- ^ the triangle, which is supposed to be the fulcrum, is supposed to be attached to the k=line, which is the lever. Hope I helped! --Contributor ; )
Is a lever an inclined plane?
No. An inclined plane is simply a two-dimensional surface with a slope to it in the third dimension. A lever is a three-dimensional object which also requires a fulcrum (or leverage point) to act as a force transmitter, amplifier or attenuator.
A bar that is free to pivot about a fixed point is a?
Fulcrum * * * * * The fulcrum is the fixed point. The bar is a lever. Admitedly, it would help if questions were asked properly.
What are the four parts of the lever?
load arm, effort arm, load, effort, fulcrum!
What is The force that you exert on a lever called?
The force that you exert on a lever can be called the effort force. The lever has three parts. They are: the fulcrum, the load, and the effort force. This can also be classified as the input force. The force that you exert to perform a task is known as the input force.
Does a lever pivot on a fulcrum or a torque?
Fulcrum. Torque is the force applied to move the lever
Point around which a lever rotates?
The fulcrum. A Lever is a rigid rod to which a force can be applied to overcome a resistance. The point at which a lever pivots is called the fulcrum.
Levers explain how the force applied by a lever is affected by its distance from the fulcrum?
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,
The fix point of a lever is called a?
The fixed point of a lever is called the fulcrum. A lever is a beam connected by a hinge, or pivot, called a fulcrum. A lever is used to amplify the applied force.
What type of lever is seesaw?
first class lever. Why? because it is in the order of output force-fulcrum-input force. output force ______________________________ input force fulcrum
What do you need to calculate the mechanical advantage of a lever?
A calculator and a formula for moments: Like distance from fulcrum x force = distance from fulcrum x force and I think mechanical advantage is the ratio of forces - for a lever for example where you need less force to exert a big force when for example, you wedge a crow bar in the side of the door to try and effect a break in
How can a lever generate a large force?
A lever works against a fulcrum. If there is a shorter section of the lever at one end of the fulcrum and a longer section at the other end, then you can exert a force on the longer end of the lever, and have a greater force exerted on the shorter end. That is because you are moving the long end through a longer distance than the shorter end moves, and all the force exerted over the longer distance is then effectively compressed into the shorter distance.
If the input force is between the fulcrum and the output force what kind of lever is it?
first class lever
How does moving fulcrum on a lever change the amount of force needed to move an object?
how does moving a fulcrum on a lever change the amount of force needed to move an object
What is the definition of a load of a lever?
Load = the force of the weight of the lever fulcrum = the point of which the lever rests effort = the force you apply to the lever
What is the definition of a load in a lever?
Load = the force of the weight of the lever fulcrum = the point of which the lever rests effort = the force you apply to the lever
