Three Identical Blocks Move Either on a Horizontal Surface, Up

question 40

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, 1, 2
• E) 2, 1, 3

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Definitions:

Depreciation Expense

The allocated amount of an asset's cost expensed over its useful life to account for its decrease in value.

Accumulated Depreciation

The cumulative depreciation of an asset up to a single point in its life, reflecting its loss of value over time.

Withdrawals Account

An account used to record the amounts taken out of a business by its owner(s) for personal use.

Capital Balance

The amount of money invested in a company by its owners or shareholders, represented in the equity section of the balance sheet.