A Mass on a Spring Vibrates in Simple Harmonic Motion

question 35

Multiple Choice

A mass on a spring vibrates in simple harmonic motion at a frequency of 4.0 Hz and an amplitude of 4.0 cm.If a timer is started when its displacement is a maximum (hence x = 4 cm when t = 0) ,what is the speed of the mass when t = 3 s?

• A)zero
• B)0.006 5 m/s
• C)0.015 m/s
• D)0.024 m/s

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Definitions:

Variable Overhead Efficiency Variance

This variance measures the difference between the actual hours taken to produce a good and the standard hours expected, multiplied by the variable overhead rate per hour.

Variable Overhead

Costs that vary in direct proportion to changes in the operational activity of a business, such as utility bills or raw material costs.

Budgeted Production

represents the amount of production planned for a future period as part of the budgeting process.

Standard Cost System

An accounting system that uses standard costs for cost control and decision making.