A uniform door of width $$$w$$$ is supported by two hinges, X and Y . X and Y are a vertical distance $$$L$$$ apart as shown. State the conditions needed for the door to be in equilibrium. (2) .............................................................................................................................................................................................................................................. .............................................................................................................................................................................................................................................. .............................................................................................................................................................................................................................................. .............................................................................................................................................................................................................................................. (b) Give the meaning of the term centre of gravity. (1)

Physics

IGCSE&ALevel

EDEXCEL

Exam No：wph11-01-que-20240112 Year：2024 Question No：18(a)

Answer:

No resultant force
No resultant moment (about any point)

The point at which the weight of an object is considered to act