NEWTON Measurements to Mass ```Name: Elizabeth Status: student Age: 13 Location: N/A Country: N/A Date: 1999 ``` Question: If a person weighs 540 newtons on earth what is the person's mass? What would the person weigh on the moon where the acceleration due to gravity is 1.67 newtons per kilogram? Replies: Divide the weight of the person 540 newton by the acceleration due to gravity (9.8m/s/s) which will give the yield the mass of the person 55.1 Kilogram. Multiply 55.1 KG x 1.67 Newton/Kg for the weight on the moon and the result is 92 newton. The ratio of 540/92 is 5.86, hence the weight of a person on the earth is 5.86 times greater than that on the moon. Dr. Myron Hello, Force or weight (in Newton) = mass (in kg) x gravitational acceleration (in m/s2). 540 N=mass x 9.8 (on earth) => mass = 55 kg. On the moon, gravitational acceleration is about one sixth of the earth's, that is, about 1.67 m/s2. Therefore, the weight of the same person on the moon is: Weight = 55 kg x 1.6 m/s2 = 92 Newton. Dr. Ali Khounsary Advanced Photon Source Argonne National Laboratory Argonne, IL 60439 Click here to return to the Physics Archives

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