A hoop with a mass of 3.15 kg starts from rest at the top of...
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Physics
A hoop with a mass of 3.15 kg starts from rest at the top of aramp. The ramp is 5.0 m long and 2.1 m high. What is the rotationalkinetic energy of the hoop after it has rolled without slipping tothe bottom?
16 J
32 J
22 J
78 J
Answer & Explanation
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4.1 Ratings (727 Votes)
As the hoop rolls down thegravitational potential energy is converted to rotational
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