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

question 10

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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