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    Hello Guys . Just need bit of help

    Question:
    A particular skier of mass 70 kg attains a speed of 42m/s. The length of the run is 3.1km.
    Find the average force of resistance acting on the skier?


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    (Original post by Silent_123)
    Hello Guys . Just need bit of help

    Question:
    A particular skier of mass 70 kg attains a speed of 42m/s. The length of the run is 3.1km.
    Find the average force of resistance acting on the skier?


    Thanks
    You can use work energy principles if you have an initial speed (for change in KE) and an angle of the slope (for change in GPE)
 
 
 
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Updated: January 13, 2010
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