Question

QUESTION 9 In the modern view of gravitation, an object in the classroom falls to the floor because: a. there is an attractive force between the object and the Earth b.it follows a geodesic line in curved Space-Time c. It was put into a decaying orbit d. the Earth sucks the object down e. none of the above

Answer 1

Option B -

Gravity is most accurately described by the general theory of relativity (proposed by Albert Einstein in 1915), which describes gravity not as a force, but as a consequence of the curvature of spacetime caused by the uneven distribution of mass.In general relativity, a geodesic generalizes the notion of a "straight line" to curved spacetime. Importantly, the world line of a particle free from all external, non-gravitational forces is a particular type of geodesic. In other words, a freely moving or falling particle always moves along a geodesic.

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