A 030-Kg Mass Attached to the End of a String Swings

question 38

Multiple Choice

A 0.30-kg mass attached to the end of a string swings in a vertical circle (R = 1.6 m) ,as shown.At an instant when θ = 50°,the tension in the string is 8.0 N.What is the magnitude of the resultant force on the mass at this instant?

• A)5.6 N
• B)6.0 N
• C)6.5 N
• D)5.1 N
• E)2.2 N

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