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How Magnet Cannons Work

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C.E.R, How Does The Magnet Cannon Work? - Jack McWilliams

The contact force from ball ‘d’ pushes ball ‘e’ to fire, which causes the magnet cannon to fire.

In our physics unit, we worked with magnet cannons and free - body diagrams. A magnet cannon is a chain of metal balls that are all connected to the magnet while ball ‘a’ shoots at the magnet which makes ball ‘e’ shoot out with a huge amount of force. We used a slow motion camera to experiment what happens to the rest of the balls when ball ‘a’ fires. When we replayed the footage, we saw that ball ‘d’ pushed out after ball ‘e’ fired. The reason this happened is because the contact force of ball ‘a’ and the magnet pushed all of the other balls and eventually came to ball ‘d’ and ‘e’. All of the balls moved a lot more to make ball ‘e’ shoot out fast and for ball ‘d’ to go away from the magnet. This happens because when ball ‘e’ shoots out, the ball has to have some way of contact force going from each ball. So when ball ‘e’ shot out, ball ‘d’ did not have enough magnetic pull when the magnet shot out and it came out for …show more content…
A free body diagram is a diagram of an object that shows us the forces acting on that object and if that object is in motion or has no motion at all. While a diagram is complex, a free body diagram is the complete opposite, a free body diagram would be one object of the diagram. We saw from the free body diagram in graph form that after one second, ball ‘e’ moved with a greater amount of force than ball ‘a’ applied, we know this because we used the ruler as the table to measure how far ball ‘a’ goes after one second. In less than a second right before ball ‘a’ hits the magnet, the ball already goes 2 cm in one second, after ball ‘a’ hits the magnet, ball ‘e’ shoots out, which leads it to go 4 cm in one second. This proves that the force of gravity can be unbalanced, even when you push with a force that is

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