The Position of a Mass That Is Oscillating on a Spring

question 99

Multiple Choice

The position of a mass that is oscillating on a spring is given by x = (12.3 cm) cos[(1.26 s²) t]. What is the acceleration of the mass when t = 0.825 s?

• A) 9.89 cm/s²
• B) -9.89 cm/s²
• C) 10.6 cm/s²
• D) -10.6 cm/s²
• E) 0 cm/s²

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Definitions:

Corrective Tax

A tax designed to encourage private decision makers to take into account the social costs that arise from a negative externality.

Allocative Efficiency

A state where resources are allocated in a way that maximizes the net benefit to society, with products being produced at a quantity where the price equals marginal cost.

Consumer Surplus

The contrast between the total payment consumers are willing and financially able to make for a good or service and the amount they truly pay.

Producer Surplus

The discrepancy between the price producers agree to sell a good for and the price they actually end up receiving.