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.
Correct Answer:
Verified
Correct Answer:
Verified
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