12. Gravitational force on the surface of the moon is only 1/6 as strong as gravitational force on the earth. What is the weight in Newtons of a 10 kg object on the moon and on the earth?
###### Answer :

Mass of the object = 10 kg

Weight of the object on earth = $$W = m × g$$

∴ $$W = 10 × 9.8$$

$$W = 98 N$$

Weight of the object on moon =$$\frac{1}{6}$$ th the weight on the earth.

As the gravitational force on the surface of the moon is only $$\frac{1}{6}$$ th as strong as gravitational force on the surface of the earth.

∴ Weight of the object on moon $$= \frac{98}{6} \ = \ 16.3 N$$

Weight on earth = 98 N

Weight on moon = 16.3 N