7. A roller coaster car of mass m = 200 kg is released from rest at the top of a 60 m high hill (position A), and rolls with negligible friction down the hill, through a circular loop of radius 20 m (positions B, C, and D), and along a horizontal track (to position E).
What is the velocity of the car position B?
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7. A roller coaster car of mass m = 200 kg is released from rest at the top of a 60 m high hill (pos...
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