Three Identical Blocks Move Either on a Horizontal Surface, Up

question 52

Multiple Choice

Three identical blocks move either on a horizontal surface, up a plane, or down a plane, as shown below. They all start with the same speed and continue to move until brought to rest by friction. Rank the three situations according to the mechanical energy dissipated by friction, least to greatest.

• A) The same for all cases
• B) 1, 2, 3
• C) 1, then 2 and 3 tie
• D) 3, 2, 1
• E) 2, 1, 3

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Definitions:

Dividends Paid

Payments made by a corporation to its shareholder members, distributing a portion of the company’s earnings.

Net New Borrowing

The total amount of new debt a company has taken on minus any debt that has been repaid during a specific period.

Interest Payments

Payments made to a lender by a borrower in return for the use of borrowed money, typically calculated as a percentage of the principal.

Net New Equity

The difference between equity capital a company raises by issuing new shares and the capital it uses to buy back existing shares.