The force between a planet and a spacecraft is 1 million newtons. whst will the force be iv the spacecraft moves to halfg its original distance from thr planet

The forces of gravity between two objects are inversely proportional to

the square of the distance between them. So reducing the distance

by 1/2 means increasing the gravitational force by 2² = 4 times.

The 1 million newtons becomes 4 million newtons.

Note that this does NOT mean the satellite's altitude above the surface.

When you're calculating gravitational forces, it's the distance between

the centers of the objects. So the question is a meaningful exercise

only if we use the distance between the satellite and the planet's center.