A Block of Mass M Slides Down a Frictionless Plane

question 81

Multiple Choice

A block of mass M slides down a frictionless plane inclined at an angle θ with the horizontal. 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.
• E)an angle θ above the inclined plane.

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Definitions:

Increased Revenues

The growth in money that a company brings in from its operations, indicating a rise in sales or other income sources.

Variable Costs

These are expenses that vary directly with changes in production volume or activity level.

Relevant Costs

Costs that should be considered when making a decision because they will be affected by the decision; these costs are future-oriented and differ among alternatives.

Sunk Costs

Costs that have already been incurred and cannot be recovered or altered by any current or future actions.