Define the mechanical advantage of a machine
Select the incorrect statement :
(a) A machine always has the efficiency less than 100%.
(b) The mechanical advantage of a machine can be less than 1.
(c) A machine can be used as a speed multiplier.
(d) A machine can have the mechanical advantage greater than the velocity ratio.
Derive a relationship between mechanical advantage, velocity ratio and efficiency of a machine.
Define mechanical advantage of a machine. Why it has no unit?
Define Actual Mechanical Advantages with reference to a machine?
Define ideal mechanical advantage with reference to a machine?