The discussion revolves around a physics problem involving a skier traveling uphill on a slope with and without friction. The original poster presents a scenario where the coefficient of kinetic friction is given, and the slope is at 30 degrees, seeking to determine how far the skier travels up the hill.
The discussion includes various attempts to analyze the forces at play and their contributions to the skier's motion. Participants are actively questioning assumptions and definitions, particularly regarding the effects of slope inclination on gravitational force. Some guidance has been provided regarding the relationship between friction, normal force, and the components of gravitational force.
Participants are working within the constraints of a homework problem, which includes specific values for the coefficient of friction and slope angle. There is an ongoing exploration of how these values influence the skier's distance traveled up the hill.
mg*cos30 + mg*sin30 ??!??Bystander said:Then the total force decelerating the skier is ... ?
OHHH!Bystander said:You forgot the coefficient of friction.
okay so if Ff = μ*Fn then...Bystander said:Close. Frictional force is the product of coefficient of friction and the normal force. One more time.
thank you so much! you have no idea how much that helped meBystander said:Correct. And you've done the d = (1/2)at2 game for the other part of the problem once already, so you should be in business. "Windoze" insists it's going to update, so I'll be off for the next half hour.