### A 7.93 kg box is pulled along a horizontal surface by a force of 84.0 N applied at a angle. If the coefficient of kinetic friction is 0.35, what is the acceleration of the box?

SOLUTION:

The free-body diagram of the box

Solve for the normal force

Solve for the friction force

Solve for the acceleration in the horizontal direction

Therefore, the acceleration of the box is 6.51 m/s^{2} along the horizontal surface.