6. A group of students from Physics 1310 go on an adventure of a lifetime a trip to Antarctica over the thanksgiving break. While they happen to be here they drive their snowmobiles over to the middle of the continent to visit he South pole. They bring with them a piece of equipment from Regener Hall the weighted bike wheel. One of the students stands on the exact South pole ith the bike wheel held directly overhead, so that the rotation axis of the wheel aligned with the rotation axis of the earth. The bike wheel has a mass of 5 g and a radius of gyration of 311 mm, and is initially spinning at a frequency € 50 Hz - and the direction of is up. With feet planted firmly in the snow,
6. A group of students from Physics 1310 go on an adventure of a lifetime a trip to Antarctica over the thanksgiving break. While they happen to be here they drive their snowmobiles over to the middle of the continent to visit he South pole. They bring with them a piece of equipment from Regener Hall the weighted bike wheel. One of the students stands on the exact South pole ith the bike wheel held directly overhead, so that the rotation axis of the wheel aligned with the rotation axis of the earth. The bike wheel has a mass of 5 g and a radius of gyration of 311 mm, and is initially spinning at a frequency € 50 Hz - and the direction of is up. With feet planted firmly in the snow,
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Transcribed Image Text:6. A group of students from Physics 1310 go on an adventure of a lifetime
- a trip to Antarctica over the thanksgiving break. While they happen to be
there they drive their snowmobiles over to the middle of the continent to visit
the South pole. They bring with them a piece of equipment from Regener Hall
- the weighted bike wheel. One of the students stands on the exact South pole
with the bike wheel held directly overhead, so that the rotation axis of the wheel
is aligned with the rotation axis of the earth. The bike wheel has a mass of 5
kg and a radius of gyration of 311 mm, and is initially spinning at a frequency
of 50 Hz - and the direction of w is up. With feet planted firmly in the snow,
4
the student tips the bike wheel over 180 degrees, so that w is pointing down.
As a result of that action, does the length of the 24 hour day become shorter
or longer? By how many seconds does the length of the day change as a result
this action? Consider the earth to be sphere of uniform density with mass of
5.972×1024 kg and radius 6371 km.
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