Answer:
50 meters
Explanation:
Let's start by converting to m/s. There are 3600 seconds in an hour and 1000 meters in a kilometer, meaning that 72km/h is 20m/s.

Since the car starts at rest, you can write the following equation:

Now that you have the acceleration, you can do this:

Once again, there is no initial velocity:

Hope this helps!
Answer:
Field, In physics, a region in which each point is affected by a force.
Explanation:
These two forces are called action and reaction forces and are the subject of Newton's third law of motion.
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