(hint) the gravity on the moon is 1/6 as strong as the gravity on earth
2007-05-22 10:32:35 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
20 Kg
2007-05-22 18:58:42 · answer #1 · answered by Virus 6 · 2⤊ 1⤋
A person doesn't weigh 120 kg. A person has a mass of 120 kg. That mass is the same on the Moon as on the Earth.
2007-05-22 17:39:42 · answer #2 · answered by TychaBrahe 7 · 0⤊ 1⤋
Well is the moon's gravity is 1/6 it's simple arithmetic.
120 / 6 = 20
2007-05-22 17:46:16 · answer #3 · answered by Derek S 2 · 0⤊ 1⤋
A person HAS A MASS of 120kg on Earth. This person has the same mass on the Moon that they do on Earth.
A person with a mass of 120kg WEIGHS 1176 Newtons on Earth and about 196 Newtons on the Moon.
2007-05-22 17:45:54 · answer #4 · answered by Bob G 6 · 0⤊ 1⤋
Weight = mass*gravity
to find the mass of the person on earth you need to divide weight by gravity 120/9.8 = 12.24 kg
to find the weight on the moon you would use (1/6)*9.8 = 1.63 as the magnitude of gravity
Weight = 12.24 * 1.63 = 19.99 = 20 kg
2007-05-22 17:42:52 · answer #5 · answered by Letitia32 3 · 0⤊ 2⤋
So one sixth would be 20kg. However this simplistic answer ignores the often confused units of weight and mass. Strictly speaking, the unit for weight should be in Newtons.
2007-05-22 17:38:15 · answer #6 · answered by Anonymous · 0⤊ 1⤋
20 kg
2007-05-22 17:36:21 · answer #7 · answered by Mike 2 · 0⤊ 2⤋
Bob G. has the only correct answer. I will not steal his credits by repeating his answer here.
Good work, Bob.
2007-05-22 20:01:34 · answer #8 · answered by zahbudar 6 · 0⤊ 1⤋
20 kg!!! My brain hurts!!tfw
2007-05-22 17:40:46 · answer #9 · answered by Knick Knox 7 · 0⤊ 1⤋