an object has a mass of 0.25 kg what is the gravitational force of on the object by the earth?
"Weight" = (mass) x (acceleration of gravity)
= (0.25 kg) x (9.8 m/s²)
= 2.45 newtons (about 8.8 ounces of force).
-- The Earth pulls on the object with 2.45 newtons of force.
(The object weighs 2.45 newtons on Earth.)
-- The object pulls on the Earth with 2.45 newtons of force.
(The Earth weighs 2.45 newtons on the object.)