A certain object at rest on the surface of Earth has a weight of 49 newtons. Its mass is, therefore:

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Quizplus · Accepted Answer

Weight is the force exerted by gravity on an object, while mass is a measure of the amount of matter in an object. The weight of the object on Earth is 49 newtons, but its mass can be calculated using the formula weight = mass x gravity, where gravity is 9.8 m/s^2 on Earth. Rearranging the formula gives us mass = weight / gravity. Therefore, mass = 49 N / 9.8 m/s^2 = 5.0 kg.

A Certain Object at Rest on the Surface of Earth