The normal reaction force exerted by the plane on the block is directed
A. parallel to the plane in the same direction as the movement of the block.
B. parallel to the plane in the opposite direction as the movement of the block
C. perpendicular to the plane.
D. toward the center of the Earth.
Answer:C
The normal reaction force exerted by the plane on the block is directed
A. parallel to the plane in the same direction as the movement of the block. B. parallel to the plane in the opposite direction as the movement of the block C. perpendicular to the plane. D. toward the center of the Earth.