Question

- Describe the causes of drag forces.
- Describe how drag changes with speed.

Answer 1

Hey dear mates!!

${\red{\boxed{\bf{Cause\: of \: drag \: force \: }}}}$

due to the difference in velocity between the solid object and the fluid drag forces occurs.

${\red{\boxed{\bf{drag \: force \: }}}}$

drag is a force acting opposite to the relative motion of any object moving with respect to a surrounding fluid.

Hope it helps!!

happy learning!!

Answer 2

Answer:

Drag is the aerodynamic force that opposes an aircraft's motion through the air. ... Drag is generated by the difference in velocity between the solid object and the fluid. There must be motion between the object and the fluid. If there is no motion, there is no drag

Drag increases with speed (v). ... An object that is stationary with respect to the fluid will certainly not experience any drag force. Start moving and a resistive force will arise. Get moving faster and surely the resistive force will be greater.