Mechanics Year 2 Flashcards
What MUST a you remember if a questions talks about strings?
There WILL be a tension force
What MUST you remember about questions which talk about 1 or 2 strings?
1 string- tension is the same throughout the string- … you can simply denote tension as T
2 strings- tension is the same in each string but different between strings- … denote each tension as a different letter or as T1 and T2
What MUST you remember about a question with motion or something moving?
USE F=MA
BUT REMEMBER when solving perpendicularly to a slope- no motion … don’t use F=MA but just resolve normally where you assume equilibrium therefore opposite forces equal
What MUST you remember about a question where the forces don’t change?
ASSUME constant acceleration unless told otherwise … USE SUVAT
What is a fulcrum?
Another word for pivot or support