A cylindrical machine part moves within a surrounding cylinder. The centrelines of the part and the surrounding cylinder are coincident. The cylinder is full of an oil $($viscosity $0\mathrm{.}25k\frac{g}{m}s)$ that is not flowing i$.$e$.$ no pressure gradient is applied. What is the value of the viscous force exerted on the machine part as it moves along the cylinder at a speed of $11\frac{m}{s}?$

The machine part is $0\mathrm{.}10m$ long and has a radius of $0\mathrm{.}045m.$

The ratio of the machine part radius to the cylinder radius is $0\mathrm{.}98.$

Assume that the flow is dominated by viscous forces.

Give your answer as an absolute value i$.$e$.$ no negative sign, in Newtons to one decimal place.