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Jack has set up a lever underneath a boulder that will destroy the bridge if the lever is pulled. If anyone wants to get to the "rock" they need to cross the bridge.

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Anonymous

4y ago

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Which of three classe of lever is a screw car jack under?

If you wrap an inclined plane around a small circle what you will end up with is a screw jack


What is mechanical advantage of screw Jack?

You divide the pitch of the jack's screw into a length equal to the distance traveled by the end of the Jack's lever around the circumference of a circle having a radius equal to the jack's lever. Elliott


What type of lever does not increase force but does increase the speed or distance a load travels?

A third-class lever does not increase force but does increase the speed or distance a load travels. In a third-class lever, the effort is between the load and the fulcrum, which results in the load moving a greater distance or speed when the effort is applied.


How would you set up a lever so that it has a mechanical advantage greater than 1?

You can set up a lever system by increasing the distance between the applied force and the fulcrum compared to the distance between the fulcrum and the load. This configuration helps to amplify the force applied. The longer the distance between the force and the fulcrum, the greater the mechanical advantage.


When a little girl jacks up a car how can applying so little force produce sufficient work to raise the car?

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.

Related Questions

What does jack set up a lever for in lord f the flies?

To prevent intruder


What is an example an a lever?

Car jack


How do you release a handyman jack?

To release a handyman jack, first ensure that it is not under load. Locate the release lever or mechanism, which is typically a pin or lever on the side of the jack. Pull or push this lever while slowly lowering the jack to allow it to descend gradually. Always handle the jack cautiously to avoid injury.


Which of three classe of lever is a screw car jack under?

If you wrap an inclined plane around a small circle what you will end up with is a screw jack


What is the simple machine of tire jack?

lever


What type of simple machine is a jack?

A lever


What type of simple machine is Jack?

A lever


How does one use a pallet Jack?

A pallet jack is a fairly simple to use piece of equipment. Depressing the lever on the handle will lower the jack. To raise it again, you simply pump the handle up and down, just as you would a car jack.


Would a bumper jack be a third class lever?

no


How do you set the marginal stop in a manual typewriter?

There should be a margin-set lever that can be slid further in or out to alter the travel of the carriage. The margin-set lever is often located next to the larger carriage release lever.


Where is the tool to lower the spare tire?

Usually stored near the jack, often the jack lever.


What to try next if the first time set up your lever the rock budges slightly but you can't quite lift it enough to make it roll to one side where you want it?

A longer lever or the same lever with the fulcrum nearer the object.