vx = v0 cos α = 40.cos 600 = 20 m/s
EK = ½ mv2 = ½.0,02.202 = 4 joule
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vx = v0 cos α = 40.cos 600 = 20 m/s
EK = ½ mv2 = ½.0,02.202 = 4 joule
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