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In a downhill ski race surprisingly little advantage is gained by getting a running start. This...

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Physics

In a downhill ski race surprisingly little advantage is gainedby getting a running start. This is because the initial kineticenergy is small compared with the gain in gravitational potentialenergy even on small hills. To demonstrate this, find the finalspeed and the time taken for a skier who skies 75.0 m along a 30°slope neglecting friction for the following two cases. (Note thatthis time difference can be very significant in competitive eventsso it is still worthwhile to get a running start.)

(a) starting from rest final speed ._______ m/s

time taken__________ s

(b) starting with an initial speed of 2.00 m/s

final speed__________ m/s

time taken__________ s

Answer & Explanation Solved by verified expert
3.7 Ratings (637 Votes)
Skier started at A travel distance to point B Using trigonometry the height of point A isLet vi and vf be the    See Answer
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