Physics 41 e?

Question

A skier is sliding down a 15 degree slope. Friction is not negligible.

Identify the forces on the skier.

Check all that apply.

Tension - vector T

Kinetic friction - vector f_k

Thrust - vector F_thrust

Weight - vector w

Static friction - vector f_s

Normal force - vector n

Answer 1

Tension - vector T; NO (yes in muscles only)

Kinetic friction - vector f_k; YES

Thrust - vector F_thrust; YES (component of weight parallel to slope)

Weight - vector w; YES

Static friction - vector f_s; NO (object is moving!)

Normal force - vector n; YES (component of weight perpendicular to slope)