A Constant Horizontal Pull Acts on a Sled on a Horizontal

question 33

Multiple Choice

A constant horizontal pull acts on a sled on a horizontal frictionless ice pond. The sled starts from rest. When the pull acts over a distance x, the sled acquires a speed v and a kinetic energy K. If the same pull instead acts over twice this distance:

• A) The sled's speed will be 2v and its kinetic energy will be 2K.
• B) The sled's speed will be 2v and its kinetic energy will be K .
• C) The sled's speed will be v and its kinetic energy will be 2K.
• D) The sled's speed will be v and its kinetic energy will be K .
• E) The sled's speed will be 4v and its kinetic energy will be 2K.

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Definitions:

Social Security Surplus

The excess funds collected through Social Security taxes over the amounts paid out as benefits.

Billion

A numerical value equivalent to 1,000 million, often used to denote a very large quantity or amount in financial and statistical contexts.

Opportunity Costs

The loss of potential gain from other alternatives when one alternative is chosen, representing the benefits one misses out on when making a decision.

Excess Capacity

Excess capacity refers to a situation where a company is operating below its maximum output level, indicating that it can produce more with the current resources if there is higher demand.