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How does friction affect the mechanical advantage of a simple machine?
Wiki User
∙ 12y ago
friction opposes the mechanical advantage of a simple machine.
for example, if you had a inclined plane that gave you an advantage of 3:1 (3 times longer then it is high) the frictional force cause by an object being pushed up the ramp would be in the direction opposite to the direction of motion equal to u*N (mu times the normal force of the object)
so for a 10 kg object being pushed up the ramp, under normal gravity = 9.81 N and a coefficent of friction = .3, the frictional force would be equal to 3 N.
if you were pushing the object on flat ground with a force of 15N, you would actually need 18 N to maintain the same speed of having no friction
appling this to the ramp, if 15N is needed to push on flat ground, only 5 N would be needed to push the object up a 0 friction ramp, and 8 N would be needed to push it up a ramp with friction to maintain the same speed.
this is true for all simple machines, and it only depends on where the friction is being created, weather it be friction between a screw and wood, a rope and the pulley, or the fulcrum and a lever
Wiki User
∙ 12y ago
Wiki User
∙ 11y agoIf IMA means mechanical advantage then friction has no effect.
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What factor affect the mechanical advantage of simple machine?
friction affects the M.A in a simple machine.
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Wear and tear of moving parts would be reduced. Less energy would be needed to run the machine, as there would be less friction to be overcome. A well lubricated machine is more efficient than a neglected machine with unoiled parts.
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The ideal mechanical advantage is determined by the shape, size, and configuration of the simple machine. The weight of the load, the size of the applied force, or the weight of the components or materials of the machine itself have no effect on the ideal mechanical advantage.
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The more moving/mechanical components in a system the greater likelihood of a part failing. remember that no part is ever manufactured exactly, there is always a tolerance (an amount the dimension/specification can vary by) cumulatively this increase the more parts you add. Basically a simple machine has less things that can break and is easier to maintain.
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Ideal Mechanical Advantage can be found using this formula IMA = DE / DR . Ideal Mechanical Advantage is a theoretical calculation, AMA,Êactual mechanical advantage is calculated with this formula, AMA = R / Eactual .
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no it does not,it has no mechanical advantage whatsoever. It is just an advantage because it goes in the opposite direction in which you pull.
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Well i think friction and air resistance cause some of the mechanical energy of an object to change to thermal energy so the mechanical energy of the object is not destroyed. Rather, it is transformed into thermal energy. the total amount of energy always stays the same. <3 Tayler
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Since the Mechanical Advantage of the inclined plane is inversely proportional to its height, increasing the height would lower your mechanical advantage and lowering the height would increase it.Alternately, mechanical advantage is directlyproportional to an inclined plane's length, therefore increasing the length would increase your mechanical advantage.
