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Is more force is usually required to pull an object than to lift it?
Wiki User
∙ 12y ago
Heavier (more massive) objects require more force to move than lighter objects.
The formula is F = ma (force is equal to mass times acceleration). The same force applied to a more massive object will provide less acceleration (motion).
Wiki User
∙ 14y ago
Wiki User
∙ 12y agoTo pull an object we have to apply a force against the force of friction. Force of friction depends on the weight of the body and the coefficient of friction.
But to lift the same object we apply a force equal to its weight.
Hence force to pull = mu* weight
Force to lift = weight
Hence force to pull / force to lift = mu
If mu is greater than one, then force to pull will be greater than that to lift.
If mu is less than one, definitely the force to lift will be greater than that to pull.
Wiki User
∙ 11y agoYes, the larger the load the more energy required this is because force=mass X acceleration. Therefore as the load increases so too does the force required to move that load.
Hope this helped!
Wiki User
∙ 11y agoTrue
Wiki User
∙ 15y agoYes.
Wiki User
∙ 13y agoYes
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The advantage of using an inclined plane to lift an object is that it reduces the?
Force required to move the object forward.
Can the number of pulleys affect the amount of force to lift a heavy objects to a high place?
Increasing the number of pulleys divides the force required to lift up a heavy object; increasing the number of pulleys decreases the force needed by the person (or motor) pulling the first end of the pulley system. However, it is important to know that it does not affect the total work needed to lift up the object. As the force is decreased, the distance of rope needed increases to compensate for a conserved amount of work required for the load to be lifted.
How many newtons of force are needed to lift a 500 kg box?
Newton is the amount of force required to accelerate an object of mass m to meter , In this case if we try to accelerate it to one meter , you require 500 newtons to lift the box perpendicularly. Also lifting of weight depends on the angle of applied force.
How is the work output of a machine related to its work input?
Note: This answer addresses simple machines, such as levers, pulleys, and ramps - it does not address complex machines, such as engines..Machines affect work by applying one or more of the following principles:altering the amount of force applied in order to do the work;altering the amount of time over which the force is applied; and/oraltering the direction that the force is applied..A simple pulley, or a balanced lever, does not change the amount of force required to lift an object, or the time during which the force is applied, but they do change the direction of the force. A balanced lever (a teeter totter) makes it easier to lift another object (your friend on the other end of the teeter totter) because you can use your own weight to help lift that object (your friend). Such simple, balanced machines do not decrease the force, nor increase the amount of time during which the force is applied - they merely redirect the force, which is often helpful..Ramps, pulleys, and levers can also reduce the required force, in addition to changing the direction of the applied force, making the work easier in two ways. For example, a compound pulley reduces the amount of force required to lift a heavy object, but it now takes more time of that applied force to lift the weight. When this occurs, the machine does not actually change the amount of work done, but the machine makes it easier to do the same amount of work by spreading that work done over a longer period of time at a reduced force..Some machines use the opposite principle - they require more force than normal, but the force is applied over a reduced period of time. A catapult is an example of this principle - it is a lever in which more work is required to lift an object than without the catapult lever, but the object is lifted so quickly that, by the time the object is lifted, it is travelling fast enough to become a ballistic object.A machine affects work done by magnifying human's physical capabilities which reduces the intensity of the work.
Which fluid force opposes lift?
Answer The essence of your question is very complicated and concerns fluid mechanics but I will simplify it as much as possible. In short, the force that opposes lift is weight (the gravitational force acting on an object's mass). If lift is greater than weight leaving all other variables such as air resistance are left the same the object is ascend. If weight is greater than lift the object will descend if already in the air or never take off if still on the ground. This question is at the heart of why planes fly. The leading edge of the wing causes the air on top to travel than the air on the bottom. Bernoulli's principle says as the speed of a fluid increases the pressure of the fluid decreases. As a result, the air on top of the wing has a lower pressure than the air on the bottom. Fluid go from high to low pressure. The air on the bottom of the wing exerts a force upward and thus the plane rises. It is important to know the other two force crucial in the flying of plane. They are thrust and drag. Thrust is the reactionary force to the force that push air out of a jet engine or from propellers. Drag is the force of air resistance and it is proportional to the velocity of the object. In other words, as the object goes faster the force trying to slow it down increases as well. This continues until the object reaches terminal velocity. Terminal velocity is the point at which the force acting on an object and the frictional force become equal in magnitude and opposite in direction. As a result, the net force acting on the object is zero and the object stops accelerating and falls at a constant rate from that point on.
How much force to lift 50 kilograms onto a shelf 3 meters high?
The height is irrelevant. The energy required depends on the height; the force does not. The weight of an object, and therefore the force required to lift it, is mass x gravity - about 500 Newtons.The height is irrelevant. The energy required depends on the height; the force does not. The weight of an object, and therefore the force required to lift it, is mass x gravity - about 500 Newtons.The height is irrelevant. The energy required depends on the height; the force does not. The weight of an object, and therefore the force required to lift it, is mass x gravity - about 500 Newtons.The height is irrelevant. The energy required depends on the height; the force does not. The weight of an object, and therefore the force required to lift it, is mass x gravity - about 500 Newtons.
What is the amount of force required to lift an object against the force of gravity equal to?
The acceleration due to gravity (9.8 meters/sec.^2) * mass of object.
The advantage of using an inclined plane to lift an object is that it reduces the?
Force required to move the object forward.
How does the pulley combination helps you do work?
It creates a mechanical advantage and reduces the force required to lift or move an object.
How much force are you exerting when you lift a 50 pound dumbbell?
Any force that is more than 50 pounds will lift a 50-pound object. The greater the force is, the greater the object's upward acceleration, and the sooner the object will reach any given height.
What is the upward force on an object?
Lift is the force that counteracts gravity.
If only gravity and support force acts on the object what is the net force?
The net force is the sum of all the forces acting on an object. Weight pulls down, buoyancy pushes up. If an object weighs 50 N and the buoyancy force is 40 N, only 10 N is required to lift the object out of the water
How work done against gravitational force?
Lift any object. Grav. force is acting down, you must apply an upward force to lift the object. Work is force applied through a distance, so work is done if you lift it, but not if you hold it still.
Can the number of pulleys affect the amount of force to lift a heavy objects to a high place?
Increasing the number of pulleys divides the force required to lift up a heavy object; increasing the number of pulleys decreases the force needed by the person (or motor) pulling the first end of the pulley system. However, it is important to know that it does not affect the total work needed to lift up the object. As the force is decreased, the distance of rope needed increases to compensate for a conserved amount of work required for the load to be lifted.
What kind of force does a porter apply to lift an object?
What is the answers
If the coefficient of static friction is 0.3 how much more force is needed to lift the object than start it sliding?
for lifting the object there is no role of friction,but of air friction.since no info,. is given about it so air friction = 0.thereby for lifting we have mg = mass * 9.8 (the wight of the object). and for sliding we have 0.3*mg . therefore 0.7mg of more force is required to lift it.
What is the advantage for lifting a large heavy object with an inclined plane?
The force required to lift the object is much less than otherwise. One might see this surprising. How the use of a ramp can decrease the force required to lift an object? The answer is that the distance the object has to moved is longer. This means that the work done in both cases is the same.(assuming there is no resistive forces) (Work done = Force x distance moved in the direction of the force) In practice however, due to friction, the total work done may actually be greater, but the decrease in the applied force is indeed worth it. A system of pulleys also uses this principle, as well as hydraulic systems.
