Answer:
Length (l) = 6 m
height (h) = 3 m
Load(L) = 500 N
Effort (E) = ?
we know the principal that
E * l = L * h
6 E = 500 * 3
6E = 1500
E = 250
therefore 250 N work is done on the barrel.
I can help you draw the ray diagram.
A. Base , salt , water,acid
Answer is a) the force caused by the wend nag encountering wind and air.
