Answer:

Explanation:
The two cars are under an uniform linear motion. So, the distance traveled by them is given by:

is the same for both cars when the second one catches up with the first. If we take as reference point the initial position of the second car, we have:

We have
. Thus, solving for t:

If they become closer, it is increased, and if the objects become farther away is decreased.
Answer:
Newtons first law
Explanation:
object in rest stays at rest
object in motion stays in motion
Answer:
every action has an equal and opposite reaction
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Protons are positively charged and neutrons are neutral whereas electrons are negatively charged.