Question

Derive the relation between MA, VR and ņ in a simple machine

Answer 1

Answer:

Explanation:

Let a machine overcome a load L by the application of an effort E. In time t, let the displacement of effort be dE and the displacement of load be dL.  

Work input = Effort X displacement of effort

= E X dE

Work output = Load X displacement of load

= L X dL  

Thus, mechanical advantage of a machine is equal to the product of its efficiency and velocity ratio.