Multiple choice

A body will continue in a state of rest, or uniform motion in a _______, unless an external force acts on it.

  1. circular path

  2. straight line

  3. axis

  4. diagonal path
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Newton's first law of inertia states that an object at rest stays at rest, and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced external force. The motion must be uniform (constant velocity) in a straight line.

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