Question

1. in each system below, player #84 is running at a speed of 7 miles per hour. considering both objects that are about to collide in each system, choose which system you would predict to have the least amount of peak forces.

system a
system b
system c
a player #84 running and heading the soccer ball that was kicked by another player.
b player #84 running and colliding with another running player running towards them.
c player #84 running and hitting the ground.

Explanation:

Step1: Analyze mass - force relationship

Force is related to mass and acceleration (F = ma). The mass of the soccer ball is much less than the mass of another player or the effective mass when hitting the ground.

Step2: Consider collision scenarios

In System A, the collision is between a player and a light - weight soccer ball. In System B, it's between two players of similar mass. In System C, it's between a player and the ground (which has effectively infinite mass compared to the player). A lighter - mass object in collision will generally result in less peak force when the velocities are similar.

Answer:

A. Player #84 running and heading the soccer ball that was kicked by another player.