What speed will the skier have when rolling down the mountain from rest with an acceleration of 0.2 m, if the descent took 1 minute. Determine the length of the mountain.
v1 = 0 m / s – the initial speed of the skier;
a = 0.2 m / s ^ 2 – the acceleration of the skier;
t = 1 minute = 60 seconds – the skier’s movement time.
It is required to find the speed at the end of the mountain v2 and the length of the mountain S.
v2 = a * t = 0.2 * 60 = 12 m / s; S = a * t ^ 2/2 = 0.2 * 60 * 60/2 = 360 meters.
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