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When a little girl jacks up a car how can applying so little force produce sufficient work to raise the car?
Wiki User
∙ 8y ago
Hilmar, repeating your answer several times doesn't make it any more comprehensible. The handle on the hydraulic jack is a lever that gives the kid a mechanical advantage when used to propel a little hydraulic fluid from a reservoir to the movable platform supporting the vehicle. The jack mechanism prevents the hydraulic fluid from returning to the reservoir when the lever is raised for another stroke. Thus, each downstroke pushes more oil out to the platform, and up it goes. An automobile jack is sized to lift autos, but heavier objects need larger jacks or more of them.
Wiki User
∙ 8y ago
Wiki User
∙ 8y agoAny hydraulic jack requires force to operate it. The term "a little girl" is nebulous to the point of being useless in this question. At some point in this exercise the jack handle WILL require more force than a " a little girl" can exert. Even the best hydraulic jack, multiplying the force with a long lever still needs strength and body weight to operate.
Wiki User
∙ 14y agoWork is force times distance. The reduced force is compensated by a larger distance - the lever of the jack has to be moved up and down many times.
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How does a large force produce a small torque and it is possible for a small force to produce a large torque?
Torque is the product of (force) x (distance from the center of rotation).So with a distance from the center that's large enough or small enough,any force can produce as much or as little torque as you want.
What is applying a force through distance is know as?
Applying a force through a distance is known as work. Work equals force in Newtons times distance in meters, and the unit for force is the Newton•meter, N•m.
Can centripetal force produce rotation?
no, but rotation can produce centripetal force
Applying a force through a distance known as?
work
Is motion a force?
No, motion is not a force. Motion is a change of coordinates. However, motion usually is a result of applying a force.
Which situation will produce the greatest change of momentum for a 1.0 kilograms carts?
applying a net force of 5 Newtons for 2 seconds
How does a large force produce a small torque and it is possible for a small force to produce a large torque?
Torque is the product of (force) x (distance from the center of rotation).So with a distance from the center that's large enough or small enough,any force can produce as much or as little torque as you want.
What object applying force?
yoyoyoyoy
When force is to the direction of motion no work is done?
No. Only if you are applying the same amount of force then there is no motion. If you are applying more force (the object is moving) then there is work being done.
How can there be an unbalanced force on an object if every action has an equal and opposite reaction?
"action/reaction" does not mean " force". "Applying force" is an action, not the force itself. So, applying force will create a reaction, which may or may not balance the applied force.
What amount of force put on a given material and a machine for applying that force?
you
Is exert something about force?
Yes. It can be simplified into applying force to an object.
How do you generate force and momentum?
You can generate force and momentum by applying pressure.
What is applying a force through distance is know as?
Applying a force through a distance is known as work. Work equals force in Newtons times distance in meters, and the unit for force is the Newton•meter, N•m.
How speed increase by applying force?
Applying more force in the direction of travel will increase the acceleration and therefore speed. If more force is applyed opposite to the direction of travel, acceleration will decrease.
Can centripetal force produce rotation?
no, but rotation can produce centripetal force
How does a lever increase the mechanical advantage?
It has to do with a type of force called torque. When you push down on a lever, the force you push with is multiplied by the length of the lever to produce a torque. If you have a very long lever, then you are multiplying your pushing force by a big number and can produce a big torque. It's an easy way to get a large force with little effort.
