Answer: 34.6N
Explanation:
1) The friction force that acts on the skis as you move down the mountain follows the rule:
Friction force = friction kinetic coefficient Ă— Normal force
2) The friction kinetic coeffcient for waxed wood skis on snow is reported in some literature as 0.10.
3) The normal force is given in the statement: 346 N
4) With that you calculate the friction force as:
Friction force = 0.1 Ă— 346N = 34.6N