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Title: A hoop with a mass of 2.75 kg is rolling without slipping along a horizontal sur Post by: ppk on Apr 4, 2012 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. Title: Re: A hoop with a mass of 2.75 kg is rolling without slipping along a horizontal sur Post by: bio_man on Apr 7, 2012 C
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