Presentation on theme: "Adding Multiple Forces that are not at right angles"— Presentation transcript:
1 Adding Multiple Forces that are not at right angles
2 The Ant applies 100N@2200 The Penguin 200N@2400 Jackie Chan 300N@3080 These three cartoon creatures are trying to pull a statue. Graphically find the resultant vector if:The Ant applies The Penguin Jackie ChanWhich vector is which?Will it move, and which waywill it go ?90180270
3 For graphical vector addition to work, the arrows must be drawn at exactly the right angle using a protractor and must be drawn to scale (proportionally) using a ruler. Check this drawing with a ruler and protractorThe Ant appliesThe PenguinJackie Chan
4 Combining the vectors “tip to tail”, regardless of the order, gives us the resultant. 300NHow can we graphically find how big this resultant is?100N
5 Two dimensional forces must be summed up in the x direction alone, the y direction alone, then finally connected head to tail and added with the pythagorean theorem
6 Adding Multiple Forces that are not at right angles 2 Possible Strategies:Graphical method:1. Draw the vectors to scale.2. Connect the vectors head to tail.3. Resultant goes from head of first to the tail of the last.Analytical method:1. Use trigonometry to resolve all vectors into X and y components.2. Add all the x vectors to each other., then add all the y vectors to each other.3. Find the resultant with the Pythagorean Theorem.