A 080-Kg Object Tied to the End of a 2 $\degree$

question 62

Multiple Choice

A 0.80-kg object tied to the end of a 2.0-m string swings as a pendulum.At the lowest point of its swing,the object has a kinetic energy of 10 J.Determine the speed of the object at the instant when the string makes an angle of 50 $\degree$ with the vertical.

• A)5.6 m/s
• B)4.4 m/s
• C)3.3 m/s
• D)5.0 m/s
• E)6.1 m/s

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Definitions:

Main Determinant

The primary factor or condition that influences an outcome or result.

Price Elasticity of Supply

The measure of how much the quantity supplied of a good responds to a change in the price of that good, computed as the percentage change in quantity supplied divided by the percentage change in price.

Demand-Side

Pertaining to the aspects of the economy influenced by consumer spending and preferences, impacting overall demand for goods and services.

Market Failure

The inability of a market to bring about the allocation of resources that best satisfies the wants of society; in particular, the overallocation or underallocation of resources to the production of a particular good or service because of externalities or asymmetric information, or because markets fail to provide desired public goods.