4
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.
The mechanical advantage is 5.Mechanical Advantage = Output Force/Input Force
When a machine is 100% efficient, theoretical and actual MAs are the same. Please let me know when you run across one of these.
we can save our time by using machines and a machine can perform the work of hundred men.
At perfect 100% efficiency, the Actual Mechanical Advantage should equal the Ideal Mechanical Advantage.
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.
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.
The mechanical advantage is 5.Mechanical Advantage = Output Force/Input Force
The "Ideal Mechanical Advantage" of a simple machine isIMA = output force /input force . To find the 'actual' or real-world mechanical advantage,multiply the IMA by the machine's efficiency.
Perfect efficiency
When a machine is 100% efficient, theoretical and actual MAs are the same. Please let me know when you run across one of these.
Mechanical Efficiency is the ratio of Actual mechanical advantage to ideal mechanical advantage.Efficiency will be maximum when Actual mechanical advantage equals that of ideal.But practically not possible.Actual mechanical advantage will be less due to friction,heat,deflection etc.avoiding these loses will increase the machine efficiency.
Common mechanisms for obtaining mechanical advantage would include such as multiple pulleys, hydraulic systems, gears, and levers.
The actual mechanical advantage is usually less, due to losses.
we can save our time by using machines and a machine can perform the work of hundred men.
No units. It is a ratio
At perfect 100% efficiency, the Actual Mechanical Advantage should equal the Ideal Mechanical Advantage.