A worker has to move a container from his truck to the working site on a horizontal surface. He wraps

a rope around the container, so it will be easier to pull. The container contains $50$ kg of sand and has

to be pulled for $215$ m$.$ Show your work and draw the forces that are acting on the sand container.

a$.$ What will be the minimum force that the worker must apply to move the container, knowing that the

friction coefficient is $0\mathrm{.}05,$ and the angle formed by the rope with the horizontal plan is $30$o$?$

b$.$ If the worker applies a force of $40$ N$,$ what will be the value of container$$s acceleration?