Machinal advantage, also known as mechanical advantage, refers to the ratio of the force produced by a machine to the force applied to it. A machine can be useful even its machinal advantage is less than 1.
No, the ideal is without friction.
Kachina al
It's 1. IMA = Distance in / Distance out. A single pulley doesn't do anything toward mechanical advantage, it changes the direction of the force. Not always. A single-axeled pulley (the typical pulley) has an IMA of 1, having one axel. If there was a second axel, then the IMA would = 2, so on and so forth. The easy way to do it is IMA = # of axels.
we find mechanical advantage of pulley by using principle of lever. according to this moment of effort is equal to moment of moment of load. As in this case effort arm is equal to load arm. so mechanical advantage is equal to one. but we know we can never finish friction between rope used and pulley so mechanical advantage is less than one
No, it is a ratio - without units.
The mechanical advantage that a machine would have without friction or in another term is that you can find the IDEAL MECHANICAL ADVANTAGE (IMA) OF A MACHINE IS BY HAVING A MACHINE WITH NO FRICTION, ALSO BY MULTIPLYING YOUR EFFORT FORCE BY 2, HOWEVER BECAUSE OF FRICTION AND THE WEIGHT THE ACTUAL MA WILL BE LESS.
No, the ideal is without friction.
Ideal mechanical advantage is what could be obtained without the effects of gravity and friction lowering the efficiency of the machine. The actual mechanical advantage is what can actually be obtained by the machine.
Kachina al
The theoretical mechanical advantage is the ratio of the input force to the output force in a simple machine without accounting for energy losses due to friction or other factors. It represents the ideal mechanical advantage that a machine could achieve under perfect conditions.
The mechanical advantage of a machine is the number of times it can perform the same task without breaking down.
Without friction, some forms of mechanical advantage do not function. In most cases for a mechanical apparatus, a reduction in friction is usually accompanied by an increase in efficiency.
Actual mechanical advantage in physics is the ratio of the output force to the input force in a mechanical system, taking into account factors such as friction and inefficiencies in the system. It is a measure of how much a machine multiplies the force applied to it, and is always less than the ideal mechanical advantage due to these losses.
Theoretical mechanical advantage is the ratio of the input force to the output force without considering friction, while actual mechanical advantage includes frictional losses in the machine. If a machine is 100 percent efficient, there will be no frictional losses, so the theoretical and actual mechanical advantages will be the same, resulting in a 1:1 ratio of input force to output force.
If a simple machine was frictionless, the Ideal Mechanical Advantage (IMA) would be equal to the Actual Mechanical Advantage (AMA). This is because in the absence of friction, all the input work would be completely transferred to the output work without any energy losses due to friction. Therefore, IMA would be equal to AMA, resulting in a more efficient and effective machine.
The assumed efficiency is 100% without any friction
the equation of mechanical advantage isFout (force, output)divided byFin (force input)the equation for Ideal mechanical advantage isDin (distance, input)divided byDout (distance, output)hope this helps a bit