NEWTON'S FIRST LAW:
Every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force.
Runners in track use Newton's 1st law. Have you ever noticed that as runners cross the finish line, they continue to move a few steps before stopping? Due to inertia (the tendency of an object to remain in motion or at rest), runners have a hard time stopping at the finish line because it require a very sudden change in motion.
Every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force.
Runners in track use Newton's 1st law. Have you ever noticed that as runners cross the finish line, they continue to move a few steps before stopping? Due to inertia (the tendency of an object to remain in motion or at rest), runners have a hard time stopping at the finish line because it require a very sudden change in motion.