The work done by the applied force (W_applied) is approximately 4484.074 J, and the work done by the force of friction (W_friction) is approximately -1331.874 J. The negative sign for W_friction indicates that the force of friction acts opposite to the direction of displacement.
Work done by the applied force (W_applied):
W_applied = F_applied * d * cos(theta)
W_applied = 80.4 N * 61.8 m * cos(28.7 degrees)
W_applied = 80.4 N * 61.8 m * 0.882
W_applied is approximately 4484.074 J
Work done by the force of friction (W_friction):
N = m * g
N = 19.4 kg * 9.8 m/s^2
N is approximately 190.12 N
W_friction = -mu * N * d
W_friction = -0.113 * 190.12 N * 61.8 m
W_friction is approximately -1331.874 J