Question

i) define centre of gravity.
ii)you were given a flat ruler how can you find the centre of gravity of the flat ruler

Answer 1

Answer:

Centre of gravity, in physics, an imaginary point in a body of matter where, for convenience in certain calculations, the total weight of the body may be thought to be concentrated. The concept is sometimes useful in designing static structures (e.g., buildings and bridges) or in predicting the behaviour of a moving body when it is acted on by gravity.