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Yamkela mangala
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The driver of a car slams on the brakes when he sees a tree blocking the road. The car slows uniformly with an acceleration of
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Vf^2 = Vi +2ad Data Vi=20.0 m/s Vf=0m/s ( at rest) dx=100m a=? Force? (O)^2=(20)^2 +2a(100) -400=200a a=-2m/s^2 Force=ma := -2(800) = -1600N
