A mass of 9.20 kilogram is pulled along a horizontal surface by a constant force of F=84.0 Newton directed 30.0o above the horizontal. The kinetic coefficient of friction is 0.350.
a. Calculate the frictional force Fk?
b. Calculate the acceleration of the mass?
c. If the mass moves horizontally 12.7 m, find what is the work done only by force?