On the Earth, the gravitational field strength is 10 N/kg. On the Moon, the gravitational field
strength is 1.6 N/kg.
If an
object has a weight of 50 N on Earth,
what is its weight on the Moon?
A 1.6 N
B 5.0 N
C 8.0 N
D 80 N
Correct Answer: C (8.0 N)
Explanation:
Here
given,
Gravitational field strength on
Earth, ge = 10 N/kg
Gravitational field strength on
Moon, gm = 1.6 N/kg
If we suppose the mass as m kg, then
Weight on earth = mge
50 N =
m kg x 10 N/kg
m = (50/10) kg = 5 kg
Now, weight on Moon =
mgm
= 5 kg x 1.6 N/kg
= 8.0 N
