A Brass Ball Is Shot Vertically Upward from the Surface

question 76

Multiple Choice

A brass ball is shot vertically upward from the surface of an atmosphere-free planet with an initial speed of 20.0 m/s. One second later, the ball has an instantaneous velocity in the upward direction of 15.0 m/s.
-What is the magnitude of the acceleration due to gravity on the surface of this planet?

• A)5.0 m/s²
• B)9.8 m/s²
• C)12 m/s²
• D)15 m/s²
• E)24 m/s²

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Definitions:

Labor Efficiency Variance

The difference between the actual hours worked and the standard hours allowed for the work performed, multiplied by the standard labor rate.

Standard Hours

The estimated time that should be taken to complete a task or produce a unit under normal conditions.

Actual Labor-Hours

Actual labor-hours represent the real number of labor hours worked by employees, as opposed to planned or estimated hours, often used in productivity and costing analyses.

Direct Material Standards

The anticipated cost and quantity of materials required for the production of goods or services.