A spacecraft in space keeps going at the same velocity, even without firing its rockets, in accordance with the _______________ law of motion.
A) fourth
B) first
C) second
D) third

Question

Quizplus · Accepted Answer

The first law of motion, often attributed to Sir Isaac Newton, states that an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force. This explains why a spacecraft continues moving at the same velocity in space when not firing its rockets, as there is minimal external force acting on it in the vacuum of space.

A Spacecraft in Space Keeps Going at the Same Velocity