When an athlete is running across the field, allow (s) for the person to be propelled forward (the runner pushes down on the ground, and the ground pushes the person in the opposite direction.

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.

the federal government of the united states was established by the constitution. us is a presidential republic. the president is head of state, head of government and of a two party legislative and electoral system. the supreme court balances the powers of the federal and the state government. yhe executive branch is headed by the oresident. there are two chambers of congress, the senate and the house of representatives. judicial power is exercised by the judicial branch (or judiciary), comprised of the supreme court and lower federal courts. the judiciary's function is to interpret the   constitution as well as the federal laws and regulations.

the answer is "meiosis ii in the mother".

the procedure of meiosis includes two divisions of the hereditary material. the main division is known as the decrease division – or meiosis i – on the grounds that it lessens the quantity of chromosomes from 46 chromosomes or 2n to 23 chromosomes or (n depicts a solitary chromosome set). in people, the decrease division results in two sperm cells each with 23 chromosomes or an egg cell with 23 chromosomes and one disposed of polar body. the second division – or meiosis ii – is called equational division. the two sperm cells split again creating four sperm cells, each with 23 or n chromosomes. in oogenesis, the egg cell and polar body partition to shape the ovum and two extra polar bodies. along these lines, the posterity are guaranteed to get one portion of the chromosomes from the mother and one half from the dad.