82. (a) If the skier covers a distance Lduring time twith zero initial speed and a constant acceleration a, then L= at2/2, which gives the acceleration a1for the first (old) pair of skis:aLt1122222 20061011===msm/sbgbg..(b) The acceleration a2for the second (new) pair is aLt2222222 20042023=msbgbg..(c) The net force along the slope acting on the skier of mass mis Fmgfmgmakk
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