Question

what type of friction acts on a parachute falling to the ground?
rolling
slding
fluid
none of the above

Explanation:

Friction occurs when there is resistance to the motion of an object. Fluid friction (also known as drag) acts when an object moves through a fluid (liquid or gas). A parachute falls through air (a gas, which is a type of fluid). Rolling friction occurs when an object rolls over a surface (e.g., a wheel on the road). Sliding friction occurs when an object slides over a surface (e.g., a book sliding on a table). Since the parachute is moving through air (a fluid), fluid friction is the relevant type.

Answer:

fluid