Galileo's idea that a body in motion continues in motion unless deflected by an external force is called the principle of
A)planetary motion.
B)gravity.
C)displacement.
D)universal mechanics.
E)inertia.

Question

Quizplus · Accepted Answer

Galileo's principle that a body in motion will continue to move unless acted upon by an external force is known as the principle of inertia. Therefore, the correct choice is E.

Galileo's Idea That a Body in Motion Continues in Motion