Question

please find answer as i have a exam

Answer 1

ots from my textbook! hope it helps!!

Answer 2

When a body having streamline shape moves in a fluid the particles of the fluid allows it to move through it by exerting a frictional force and this force of friction is called fluid friction exerted by the fluids such liquids and gasses on the object moving through them .
Objects moving in these fluids must have a special shape that is the streamline shape because it reduces the friction so that the objects could move freely .