Momentum is inertia in motion. In class we have studied how momentum affects the collision between to carts. When the carts collided with each other they transferred their momentum to each other. I took a picture of someone getting hit by a giant exercise ball. The momentum from the ball was transferred to the guy's face. Since the ball was flat the impact was not as great. It took more time for the ball to completely come at rest, therefore the force was not as strong. If the ball was not flat the entire momentum of the ball would hit him at once. It would be similar to the experiment of the lighter car in motion colliding with the heavier car at rest. Fortunately the momentum was distributed little by little so no one got hurt.
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