The Figure Shows Two Packages That Start Sliding Down a 20°

question 12

Multiple Choice

The figure shows two packages that start sliding down a 20° ramp from rest a distance along the ramp from the bottom. Package A has a mass of 5.0 kg and a coefficient of kinetic friction 0.20 between it and the ramp. Package B has a mass of 10 kg and a coefficient of kinetic friction 0.15 between it and the ramp. How long does it take package A to reach the bottom?

• A) 2.7 s
• B) 3.0 s
• C) 3.2 s
• D) 3.5 s

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Definitions:

Perpetual Inventory System

A system for accounting inventory that instantly captures the transactions of buying or selling via computerized point-of-sale systems and software for enterprise asset management.

Gross Method

An accounting practice where purchases are recorded at their full invoice price without deducting discounts that may later be received.

Merchandise

Goods that are bought and sold within a retail or wholesale environment, comprising the primary source of revenue for merchandising companies.

Perpetual Inventory System

An approach to inventory accounting that directly records transactions of inventory sales or purchases through the use of computerized point-of-sale and enterprise asset management software.