To move a large crate across a rough floor, you push on it with a force F at an angle of 21, below the horizontal, as shown in the figure.

To move a large crate across a rough floor, you push on it with a force F at an angle of 21, below the horizontal, as shown in the figure. Find the acceleration of the crate, given that the mass of the crate is m = 36 kg, the applied force is 318 N and the coefficient of kinetic friction between the crate and the floor is 0.57.