A Box of Mass M Is Pressed Against (But Is

question 37

Multiple Choice

A box of mass m is pressed against (but is not attached to) an ideal spring of force constant k and negligible mass,compressing the spring a distance x.After it is released,the box slides up a frictionless incline as shown in the figure and eventually stops.If we repeat this experiment with a box of mass 2m

• A)the lighter box will go twice as high up the incline as the heavier box.
• B)just as it moves free of the spring,the lighter box will be moving twice as fast as the heavier box.
• C)both boxes will have the same speed just as they move free of the spring.
• D)both boxes will reach the same maximum height on the incline.
• E)just as it moves free of the spring,the heavier box will have twice as much kinetic energy as the lighter box.

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Definitions:

Complements

Products or services that complement each other, resulting in a rise in demand for one causing a corresponding increase in demand for the other.

Substitutes

Goods or services that can replace each other in use, whereby an increase in the price of one leads to an increase in demand for the other.

Quantity Of Zero

A condition where the quantity of a good or service supplied or demanded is zero, often due to a price set below or above the market equilibrium.

Current Demand

The existing desire or need for a product or service within a market at a specific point in time.