Question
A person standing at the top of a cliff whirls a stone at the end of a string in a horizontal circle. The stone is released at a point 20.0 m above the base of the cliff and lands a horizontal distance X from the base. X is thirty times the radius of the circle on which the stone is whirled.
Determine the angular speed of the stone at the moment of release.
Determine the angular speed of the stone at the moment of release.
Answers
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Starting from rest, two skaters, a 54 kg woman, and an 88 kg man push off against each other on ice where friction is negligible.
The woman moves away with a speed of +2.5 m/s.
Find the recoil velocity of the man.
The woman moves away with a speed of +2.5 m/s.
Find the recoil velocity of the man.