A Block of Mass M Slides Down a Frictionless Plane

question 61

Multiple Choice

A block of mass M slides down a frictionless plane inclined at an angle θ with the horizontal. The gravitational force 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.
• E) toward the center of mass of the block.

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