Question

Why will the blades ,begin emphasis,NOT,end emphasis, turn if the wind blows at less than 10 kilometers per hour?
Answer options with 4 options
A.
The blades are too large to be pushed by the force of moving air.
B.
There is no force acting on the wind turbine so the blades remain at rest.
C.
The forces acting to move the blades are balanced by the forces acting to keep them still.
D.
The wind turbine is not large enough for the potential energy of the wind to make the blades move.

Answer 1

The correct answer is:

C. The forces acting to move the blades are balanced by the forces acting to keep them still.