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How does a lever allow a weight to be lifted that is too heavy to be lifted without a lever?
Wiki User
∙ 15y ago
To understand the lever you have to understand the concept of work. (That's work as it is defined in the physically sciences, not the social responsibility which seems to be far more difficult to understand).
Acceleration is how much an object of capable of being sped up. It is measure in meters per second squared. m/s2
Force is what accelerates a mass. It is measured in Newtons, or Kilograms meters per second squared. Kg m/s2
Energy is what you have when you apply a force through a distance. It is measured in Joules, or Kilogram meters squared per second squared. Kg m2/s2
No when you have a lever you have a long end and a short end. The long end is high, the short end is low. The weight to be lifted is on the short end, your effort is being applied to the long end.
Your effort is applied to the entire distance that the long end travels from high to low (it is a great distance). Your effort is also applied to the entire distance that the short end travels for low to high (it is a small distance).
Now each end of the lever has the same amount of energy, (but the distances traveled are different) so the only way that the energy can be equal is that the FORCE at either end is also different - and different in such a way that it balances the energy at either end. The only way that this can happen is that the 'force on the short end' is greater than the 'force on the long end'.
F1d1 = F2d2 but d1>>d2 so F2 has to be much greater than F1
Wiki User
∙ 15y ago
A lever allows a weight to be lifted that is too heavy to be lifted without it by applying mechanical advantage. By placing the fulcrum closer to the heavier weight, the lever can amplify the force applied on the other end, making it easier to lift the weight. This principle follows the law of levers, which states that the force required to lift an object is inversely proportional to the distance between the fulcrum and the object being lifted.
Wiki User
∙ 14y agoPlace the fulcrum of the lever 1/3rd of the way from the force to the weight.
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Do pulleys only lift heavy things?
No, pulleys can be used to lift heavy or light objects. The mechanical advantage of pulleys allows for an easier lifting process regardless of the weight being lifted.
What is the synonym for heavy?
One synonym for heavy is "weighty".
How do you use the word heaving in a sentence?
The workers were heaving heavy crates onto the truck.
What is the noun of weight?
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What is the purpose of the counterweight of the forklift?
The counterweight on a forklift is designed to balance the weight of the load being lifted. It prevents the forklift from tipping over by providing stability and keeping the center of gravity low.
What is the participle of lift?
lifted. The heavy weight was lifted off the Survivor of the earthquake.
What is the past participle of lift?
lifted. The heavy weight was lifted off the survivor of the earthquake.
What is the heaviest weight lifting category?
Leonid Taranenko of the USSR lifted 266.0Kg in the Clean & Jerk in 1988. This remains the heaviest ever Clean and Jerk recorded in competition.
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The muscular man lifted the heavy weights with ease.
Can you give an example with the word strenuous?
He lifted the boulder, but not without heavy exertion.you can not win without exertion . Your highest exertion is required.
What is a sentence with the word lifted?
She lifted the heavy box with ease, showcasing her strength.
Do pulleys only lift heavy things?
No, pulleys can be used to lift heavy or light objects. The mechanical advantage of pulleys allows for an easier lifting process regardless of the weight being lifted.
What is the synonym for heavy?
One synonym for heavy is "weighty".
How do you use the word heaving in a sentence?
The workers were heaving heavy crates onto the truck.
Who can lift 650 kg in weights?
By W.W.L.A (World Weight Lifting association) No body Builder can Lift 650Kg On any Weight Lifting Machines The only Way 650Kg can Be Lifted is by hydraulic Or Heavy Lifting machinery
What is the noun of weight?
The noun 'weight' is a common noun. The noun 'weight' is a concrete, countable noun as a word for a measure of the heaviness of an object; a heavy object, especially one being lifted or carried. The noun 'weight' is an abstract, uncountable noun as a word for the the influence or importance that something has.
What is the purpose of the counterweight of the forklift?
The counterweight on a forklift is designed to balance the weight of the load being lifted. It prevents the forklift from tipping over by providing stability and keeping the center of gravity low.
