Rotational Kinetic Energy: A hoop is rolling without slipping along a horizontal surface with a forward speed of 5.50 m/s when it starts up a ramp that makes an angle of 25.0° with the horizontal. What is the speed of the hoop after it has rolled 3.00 m up as measured along the surface of the ramp?
A. 4.22 m/s
B. 1.91 m/s
C. 2.06 m/s
D. 3.79 m/s
E. 8.02 m/s
Answer: A
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