What Is the Difference Between Mechanical Advantage and Mechanical Efficiency.?
I am a little confused. Why is possible to have a mechanical advantage greater than 1 but you cannot have a mechanical efficiency greater than 100%
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How Do You Work Out Mechanical Advantage, Velocity Ratio and Efficiency?
An object with a mass of 2 tonnes is lifted with a simple screw jack which requires an effort of 250N. If, in lifting the object, a distance of 150MM is moved vertically, and the operator turns the jack handle through a distance of 20,000MM calculate:
a) The mechanical advantage.
b) The velocity ratio
c) The efficiency
Thanks in advance for any help.