forces

• terminal velocity is when air resistance and gravity are equal
• terminal velocity only happens when the object is falling for long enough
• once dropped, the object will have much more gravity compared to air resistance meaning it accelerates
• after accelerating, the object gains frictional force due to speeding up meaning it will gradually stop accelerating and the two forces will become equal and terminal velocity will be reached and the resultant force will be zero
• terminal velocity depends on drag compared to weight. The larger the area, the slower the terminal velocity.
• Frictional force depends on shape and area.
• drag is the term for a resisting force, air resistance is a type of drag
• Extention is directly proportional to the force thats applied
• F = k e
• force is equal to constant x extension also appiles to compression. The e value is the difference between the natural and compressed length
• At the limit of proportionality, the spring become deformed and on a graph, the line would curve. The springs extension is no longer proportional to force.