Answer:
Military dictatorship.
Explanation:
"one man has authority" - In dictatorships, the leader ("dictator") has complete, individual power.
"relies on strict military rules" - Dictatorships are are an authoritarian form of government; authoritarian governments are characterized by "favoring or enforcing strict obedience to authority" and combining that with military-enforced rule, you get a military dictatorship!
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Ok, the hilarious thing is that right now you are cheating. Lol. But it is because they say they've studied all year, or because they want to get into a good school. :)
Answer: Ground reaction force (GRF)
Explanation:
Ground reaction force (GRF) is the force that is exerted by the ground surface towards the body or on the person that has the contact with it.This force acts opposite to the force of action to support the body.
According to the situation described in question, when any sportsperson or athlete is running on the ground, ground reaction force tends to act on the athlete/runner from the ground.
It is created as the runner is running and ground supports the athlete to move forward by giving opposite reaction in regard with the action of pushing the ground down by athlete.