Observing a planetoid orbiting far from the sun, astronomers notice that the object slows down in its orbit in a way they did not expect. Which is a reasonable conclusion?(1 point)

Question

Responses

The planetoid is being attracted toward another massive object.
The planetoid is being attracted toward another massive object.

The planetoid is slowing due to friction.
The planetoid is slowing due to friction.

The planetoid is beginning to change its type of orbit.
The planetoid is beginning to change its type of orbit.

The planetoid is being repelled by something.

Answer 1

The most reasonable conclusion given the observation that the planetoid is slowing down in its orbit is:

The planetoid is being attracted toward another massive object.

This conclusion aligns with the principles of gravitational attraction, where an additional mass can alter the trajectory and speed of an orbiting body. The other options (friction, changing orbit type, being repelled) are less likely to explain the observed behavior in the context of celestial mechanics.