A Hoop with a Mass of 2

question 100

Multiple Choice

A hoop with a mass of 2.75 kg is rolling without slipping along a horizontal surface with a speed of 4.50 m/s when it starts down a ramp that makes an angle of 25.0° with the horizontal. What is the rotational kinetic energy of the hoop after it has rolled 3.00 m down the ramp?

• A) 34.2 J
• B) 22.4 J
• C) 44.9 J
• D) 62.0 J
• E) This question cannot be answered without knowing the radius of the hoop.

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