A Rope Pulls on the Lower Block in the Figure

question 13

Multiple Choice

A rope pulls on the lower block in the figure with a tension force of 20 N. The coefficient of kinetic friction between the lower block and the surface is 0.16. The coefficient of kinetic friction between the lower block and the upper block is also 0.16. The pulley has no appreciable mass or friction. What is the acceleration of the 2.0 kg block?

• A) 4.1 m/s²
• B) 5.1 m/s²
• C) 8.4 m/s²
• D) 9.2 m/s²

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Definitions:

Operands

The entities on which operators perform operations in expressions, such as variables or values.

Period

A length or span of time characterized by a specific condition, activity, or event.

Terminate

To bring an activity, process, or operation to an end; in computing, it often refers to stopping a program or process.

Cast Operator

A symbol or method in programming used to convert a variable from one data type to another.