An Object Attached to the End of a String Swings

question 2

Multiple Choice

An object attached to the end of a string swings in a vertical circle (R = 1.2 m) ,as shown.At an instant when θ = 30°,the speed of the object is 5.1 m/s and the tension in the string has a magnitude of 20 N.What is the mass of the object?

• A)2.0 kg
• B)1.5 kg
• C)1.8 kg
• D)1.2 kg
• E)0.80 kg

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Definitions:

Service Economy

An economic phase in which the service sector generates more wealth than the manufacturing sector of the economy, characterized by a high volume of services relative to goods.