paperlined.org
trades > survivalist > weapons > slinging
document updated 12 years ago, on Oct 3, 2011
E_rotational = 1 over 2 I %omega^2

newline 

E_rotational = 1 over 2 I {v^2} over {r^2}

newline 

F_centripetal = {m v^2} over r

newline

v = sqrt{{r F_centripetal} over m}

newline

E_linear = 1 over 2 m v^2

newline

E_linear = 1 over 2 r F_{centripetal}

newline