A skier speeds down a smooth ski slope which is at an angle

Question

Compute all given parts of following problem:

Problem: A skier speeds down a smooth ski slope which is at an angle of 22° with the horizontal. The mass of the skier is 73 kg. Take the downhill direction to be positive and uphill to be negative.

Part A: What net force is acting on the skier? (Indicate the direction with the sign of your answer.)

N

Part B: What is the acceleration experienced by the skier? (Indicate the direction with the sign of your answer.)

m/s²

Part C: How does the net force experienced by the skier change if the ski slope becomes steeper?

Increases

Decreases

Remains the same

Any help I can get on this problem is really appreciated! I'm not too familiar with this problem.