Askier is traveling down a slope that is inclined 30° above the horizontal. the coefficient of kinetic friction between the skier and the slope is 0.10.
which of the following best describes the acceleration of the skier? a) it is zero. b) it is about 4.0 m/s^2 c) it is about 9.0 m/s^2 d) it is about 10 m/s^2e) it cannot be determined without knowing the mass of the skier.

It cannot be determined without knowing the mass of the skier.

Explanation:

A skier is traveling down a slope that is inclined 30° above the horizontal. The coefficient of kinetic friction between the skier and the slope is 0.10.

Which of the following best describes the acceleration of the skier?A) It is zero. B) It is about 4.0 m/s^2 C) It is about 9.0 m/s^2 D) It is about 10 m/s^2E) It cannot be determined without knowing the mass of the skier.

u=f/R

f=frictional force over reaction.masinalpha

U=coefficient of Kinetic friction

R=reaction

f=ma, since the frictional force is in the opposite direction of the force applied to move down the inclined plane

from newtons second law of motion , we know that the force applied is directly proportional with rate of change in momentum.

to get the acceleration , acceleration , mass needs to be given as force is dependent on the mass acceleration.

the entire statement is true and correct.  

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