You are applying force on the pan of single pan weighing balance and the pointer points to 100 g. What is the force in newtons applied by you?
You are applying a force that, to the weighing balance, is as if there were a 100g mass in the pan. The hypothetical 100g mass would apply its weight of weight=m⋅g=0.1kg⋅9.8ms2=0.98N So you are applying a force of 0.98 N.
