A String Is Wrapped Tightly Around a Fixed Frictionless Pulley

question 82

Multiple Choice

A string is wrapped tightly around a fixed frictionless pulley that has a moment of inertia of 0.0352 kg ∙ m² and a radius of 12.5 cm.The string is pulled away from the pulley exerting a constant force of 5.00 N on the pullley causing the pulley to rotate.What is the speed of the string after it has unwound 1.25 m if the string does not slip on the pulley?

• A)2.09 m/s
• B)2.36 m/s
• C)1.18m/s
• D)3.18 m/s
• E)4.95 m/s