model A weelookang.blogspot.sg 4¦Ë = 0.3383 m, imply ¦Ë = 0.0846 m. 4T = 0.533 s, imply T = 0.133 s. therefore v = ¦Ë/T = 0.63 m/s
model B 3.5¦Ë = 0.3199, imply ¦Ë =0.091 m. 3.5T = (0.533-0.1), imply T =0.124 s. therefore v = ¦Ë/T =0.74 m/s
average v = (0.74+0.63)/2 = 0.69 m
Author: video: lookang, model = lookang
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