How is the mechanical advantage related with the velocity ratio for an actual machine? State whether the
How is the mechanical advantage related with the velocity ratio for an actual machine? State whether the efficiency of such a machine is equal to 1, less than 1 or more than 1.
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The mechanical advantage for an actual machine is equal to the product of its efficiency and velocity ratio.
M.A = V.R × n
The efficiency of such a machine is always less than 1, i.e. h<1. This is because there is always some loss in energy in form of friction etc.
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