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On planet X, an object weighs 5.51 N. On planet B where the magnitude of the free-fall acceleration is 1.08 g (where g = 9.8 m/s 2 is the gravitational acceleration on Earth), the object weighs 20.81 N. The acceleration of gravity is 9.8 m/s 2 . What is the mass of the object be on Earth? Answer in units of kg.

Respuesta :

Answer:

Mass of object in Earth = 1.96 kg.

Explanation:

We know weight is the product of mass and acceleration due to gravity.

Mass is a constant.

           W = mg

On planet X, an object weighs 5.51 N.

      [tex]W_X=mg_X\\\\5.51=mg_X[/tex]

On planet B where the magnitude of the free-fall acceleration is 1.08 g (where g = 9.8 m/s 2 is the gravitational acceleration on Earth), the object weighs 20.81 N.

           [tex]W_B=mg_B\\\\20.81=m\times 1.08\times 9.81\\\\m=1.96kg[/tex]

Mass of object in Earth = 1.96 kg.

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