according to eq. of continuity,
A1V1=A2V2
as water moves downward v increases due to free fall acceleration.
but product av=constant
so, a decreases to keep the product constant.
so the stream dia decreases.
A steady non- turbulent stream of water comes out of a tap and falls vertically downward. As it does so, the diameter of the stream appears to get smaller, what is the reason?
according to eq. of continuity,
A1V1=A2V2
as water moves downward v increases due to free fall acceleration.
but product av=constant
so, a decreases to keep the product constant.
so the stream dia decreases.