A stone at the end of a sling is whirled in a vertical circle of radius...
A stone at the end of a sling is whirled in a vertical circle of
radius 
= 1.28 m. The center of the sling is at a height 
= 1.63 m above the ground. The stone is released at point A when
the sling is inclined at 30.0° above horizontal, as shown in the
figure. If the centripetal acceleration of the stone immediately
before release is 42.3 m/s2, at what horizontal distance
(in m) does the stone land as measured from the point directly
below the center of the circle?
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