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Force Mass Demonstrator Demonstrate Newton's First Law;the Law of Inertia Rest the plastic ball on top of the plexiglass square that is set on the vertical post. The Ball has a slightly flatted spot to prevent rolling. Release the spring and the square shoots out. The handy string prevents the plexi card from shooting across the room. The ball falls into the concave recession in the post, remaining at rest on top of the post as if nothing happened. The clasp on the right is great for storing the ball when you're at rest. |
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