Momentum, Impulse and Center of Mass Problem 2: Fred Syversen set the world reco

Question

Momentum, Impulse and Center of Mass

Problem 2:

Fred Syversen set the world record for a skier cliff drop at 107 meters (351 ft). It was actually a mistake, he skied the wrong line. It’s on youtube if you want to watch it. Terminal speed is about 55 m/s and his estimated weight is 85 kg. Forces over 1x10^5N tend to be deadly to humans. Use this as the average force on him while the snow brought him to a stop. Calculate the impulse of the snow on him to bring him to a stop and the distance he traveled into the snow.

Explanation / Answer

here

impulse = Force * time

speed = distance / time

impulse = F * distance / speed

impulse = 1 * 10^5 * 107 / 55

impulse = 194545.45 N sec

the impulse of the snow on him to bring him to a stop is 194.5 * 10^3 Ns

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