An Ideal Spring Is Used to Fire a 15

question 16

Multiple Choice

An ideal spring is used to fire a 15.0-g block horizontally.The spring has a spring constant of 20 N/m and is initially compressed by 7.0 cm.The kinetic energy of the block as it leaves the spring is:

• A)0 J
• B)2.5 * 10^-2 J
• C)4.9 *10^-2 J
• D)9.8 * 10^-2 J
• E)1.4 J

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Definitions:

Inelastic Demand

A situation where the demand for a product does not change significantly with a change in the price of that product.

Inferior Good

A type of good for which demand decreases as the income of the consumer increases, typically because consumers will choose higher quality substitutes when they can afford them.

Demand Curve

A graphical representation of the relationship between the price of a good or service and the quantity demanded for a given period, typically showing a downward slope from left to right.