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Find the weight of 80 KG man on the surface of moon what should be his marks on the earth and |
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Answer» Let us make sure we understand mass and WEIGHT are not the same thing. 80 kg of mass is not the same thing as 80 N of weight. To CALCULATE weight, we use Newton's 2nd Law of Motion, which GIVES us the formula "Force = mass X acceleration". We would take the mass given, 80 kg, and multiply it times the acceleration of Earth's downward pull on that mass, 9.8 m/s/s.784 N = 80 kg x 9.8 m/s/sSo the weight on Earth is 784 newtons. Now the gravitational attraction of the moon is about 1/6 that of the Earth, or about 17%. To calculate the weight on the moon, simply multiply 784 N times .17, or 17% in decimal form:784 N x .17 = 133.28 NSo the weight of the same 80 kg mass on the moon is 133.28 N.Explanation: |
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