A Rock, Dropped from Rest near the Surface of an Atmosphere-Free

question 73

Multiple Choice

A rock, dropped from rest near the surface of an atmosphere-free planet, attains a speed of 20.0 m/s after falling 8.0 meters.
-How long did it take the object to fall the 8.0 meters mentioned?

• A)0.40 s
• B)0.80 s
• C)1.3 s
• D)2.5 s
• E)16 s

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Definitions:

Budget Variance

The difference between the budgeted or planned amount of expense or revenue, and the actual amount incurred or earned.

Variable Overhead

Costs of production that fluctuate with the level of output, such as utility expenses and some types of labor costs, which are not directly tied to the volume of production.

Spending Variance

The difference between the actual amount spent and the budgeted amount for a particular cost or expense category.

Standard Cost

A predetermined cost of manufacturing or producing a product or performing a service under normal conditions.