I need help on my physics hmwk
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I need help on my physics hmwk

[From: ] [author: ] [Date: 11-12-06] [Hit: ]
......
A bucket full of water is rotated in a vertical circle of radius 0.837 m (the approximate
length of a person’s arm).
What must be the minimum speed of the
pail at the top of the circle if no water is to
spill out?
Answer in units of m/s

-
a = v^2/r

acceleration must be equal to gravity to keep water from falling

9.81m/s^2=v^2/.837m

v=2.87m/s
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