A bag of sugar weighs 6.70 lb on Earth.

a) What would it weigh in newtons on the Moon, where the free-fall acceleration is one sixth that on Earth?

6.7 lb = 3.04 kg

mg₁=3.04•9.8 =29.8 N
mg₂=mg₁/6 =3.04•9.8/6=4.97 N