Question

Objects on the moon's surface have an acceleration due to gravity one-sixth that on the earth's. What would the 50.0 kg boy weigh on the moon?

Answer 1

weigh= Mg [given g=9.8ms-²]
W = 50×9.8 = 490N
it's weight on the moon becomes 1/6×490 = 81.67N

Answer 2

Answer: 80 N

Explanation:

The acceleration due to gravity on Earth is $g=9.8 m/s^2$. On the Moon, it is 1/6 that on the Earth, so the acceleration due to gravity on the Moon is

$g'=\frac{1}{6}g=\frac{1}{6}(9.8 m/s^2)=1.6 m/s^2$

The weight of the boy on the moon can be calculated as

$W'=mg'$

where m=50 kg is the boy's mass. By substituting in the formula,

$W'=(50 kg)(1.6 m/s^2)=80 N$