Question

define one unit force.....​

Answer 1

One Unit force is the force applied on per unit area .

Answer 2

The SI derived unit used to measure force. One newton is equal to the force needed to accelerate a mass of one kilogram one meter per second.

$\bold\blue{the \: si \: derived \: unit \: used \: to \: measure \: force \: .one \: newton \: is \: equal \: to the \: force \: needed \: to \: accelerate \: \: the \: mass \: of \: one \: kg \: \: one \: m \: per \: sec}$