Question

Q33. Efficiency of a machine in terms of mechanical
advantage(M.A) and velocity ratio(V.R) is given by​

Answer 1

Mechanical Advantage velocity ratio and efficiency of a machine

Mechanical Advantage velocity ratio and efficiency of a machineAs velocity ratio or ideal mechanical advantage is a simple ratio of two distances, it also does not have the unit. The friction is not involved in it. The efficiency of a simple machine is defined as the ratio of useful work done by a machine (output work) to the total work put into the machine (input work).