A Heavy Sled and a Light Sled,both Moving Horizontally with the Same

question 160

Multiple Choice

A heavy sled and a light sled,both moving horizontally with the same kinetic energy,suddenly slide onto a rough patch of snow and eventually come to a stop.The coefficient of kinetic friction between the sleds and the rough snow is the same for both of them.Which of the following statements about these sleds are correct? (There could be more than one correct choice.)

• A)Both sleds will slide the same distance on the rough snow before stopping.
• B)The heavy sled will slide farther on the rough snow than the light sled.
• C)The light sled will slide farther on the rough snow than the heavy sled.
• D)On the rough snow, the change in kinetic energy will be the same for both sleds.
• E)The friction force exerted on the sleds by the snow will do the same amount of work on both sleds.

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Definitions:

Government Intervention

Actions taken by a government to influence the economy beyond its basic regulations, including fiscal and monetary policies.

Classical Economists

Economists from the 18th and 19th centuries who focused on the importance of free markets, competitive forces, and the self-regulating nature of economies.

Demand

The desire and ability of consumers to purchase goods and services at given prices, influencing market equilibrium and pricing strategies.

Recessions

Periods of temporary economic decline during which trade and industrial activity are reduced, typically identified by a fall in GDP in two successive quarters.