solution pls.......many thanks?

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For a person weighting 85 N, calculate the mass of the person (1) on earth where g= 9.8 m s-2 and (2) on the moon where g= 1.67 m s-2

2007-12-16 19:35:48 · 2 answers · asked by beutifulgirl 3 in Science & Mathematics ➔ Astronomy & Space

From F = ma, we get in the first case
85 = m (9.8)
so m = 85 / 9.8 = 8.7 kg
and in the second case
m = 85 / 1.67 = 51 kg.

2007-12-16 19:40:56 · answer #1 · answered by Scarlet Manuka 7 · 0⤊ 1⤋

85N is a pretty light person, are you sure you have the correct value?

2007-12-17 15:08:28 · answer #2 · answered by arbiter007 6 · 0⤊ 0⤋