A 02 Kg Rubber Ball Is Dropped from the Window of of a Building

question 36

Multiple Choice

A 0.2 kg rubber ball is dropped from the window of a building. It strikes the sidewalk below at 30 m/s and rebounds up at 20 m/s. The magnitude of the impulse due to the collision with the sidewalk is:

• A) 10 N .s
• B) 6.0 N .s
• C) 2.0 N .s
• D) 19.6 N . s
• E) 9.8 N .s

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Definitions:

Variable Overhead Rate Variance

The difference between the actual variable overhead incurred and the standard cost of the variable overhead allotted for the actual production level.

Supplies

Materials and items that are used in the day-to-day operations of a business but are not directly tied to the production of goods or services.

Variable Overhead Efficiency Variance

The difference between the expected (standard) cost of variable overheads based on actual production and the actual cost incurred.

Variable Overhead Efficiency Variance

A measure that reflects the efficiency of variable overhead resource usage by comparing the standard hours allowed with the actual hours used.