ch15-p087 - 87. The magnitude of the downhill component of...

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87. The magnitude of the downhill component of the gravitational force acting on each ore car is = 10000 9.8 2 w x kg m / s sin bg c h θ where = 30° (and it is important to have the calculator in degrees mode during this problem). We are told that a downhill pull of 3 ω x causes the cable to stretch x = 0.15 m. Since the cable is expected to obey Hooke’s law, its spring constant is = 3 = 9.8 10
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