Question

glass plate of dimension 40 *20 CM square is played on a table on which there is a layer of machine oil of thickness 0.02 mm the coefficient of viscosity of machine oil is 0.4 find the force required to draw the blade horizontally with the speed of 5 metre per second square

Answer 1

The force necessary to draw the blade horizontally with the speed of 5 metre per second is 14.7 N.