A skier, of unknown mass, is initially traveling towards a steep slope as shown

Question

A skier, of unknown mass, is initially traveling towards a steep slope as shown in picture below. Ignore air resistance.

(a) If the slope is smooth then calculate the minimum velocity magnitude the skier needs to have in order to barely reach the top of the slope.

(b) If the slope has a coefficient of kinetic friction of 0.22, then calculate the minimum velocity magnitude the skier needs to have in order to barely reach the top of the slope.

(c) If the slope has a coefficient of kinetic friction of 0.22, then calculate the minimum velocity magnitude the skier needs to have in order to reach the top of the slope with a velocity magnitude of 3.5 m/s.

Explanation / Answer

a) 7m/s
b) 8.03m/s
c) 8.76m/s

Please refer this

https://drive.google.com/file/d/0B8qjn515WH80SFF0N2Y3WkpMbnM/view?usp=sharing

https://drive.google.com/file/d/0B8qjn515WH80ZFVTZXRfSjREQ2c/view?usp=sharing

https://drive.google.com/file/d/0B8qjn515WH80dXVsaHF3SW5vRjA/view?usp=sharing

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