On planet X, an object weighs 7.04 N. Onplanet B where the magnitude of the free-fallacceleration is 1.91g (whereg = 9.8 m/s2isthe gravitational acceleration on Earth), theobject weighs 25.74 N. The acceleration of gravity is 9.8 m/s2. What is the mass of the object be on Earth? Answer in units of kg.

Mass of object in Earth is 1.37 kg

Explanation:

On planet B where the magnitude of the free-fall acceleration is 1.91g, the object weighs 25.74 N.

We have

Weight = Mass x Acceleration due to gravity

On planet B

25.74 = Mass x 1.91 g

25.74 = Mass x 1.91 x 9.81

Mass = 1.37 kg

Mass is constant for an object. It will not change with location.

Mass of object in Earth = Mass of object in Planet B

Mass of object in Earth = 1.37 kg