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- Consider now the configuration below: a)Express the total kinetic energy of System 2 in terms of ω, r, and m. b) If we express the kinetic energy as K=1/2Iω^2, what is I for System 2? c) Which mass has a larger kinetic energy, the mass at radius r or the mass at r/2? Why?Please derive and proof this equation (four equation on picture)Two astronauts with masses m1 and m2 are moving with the velocity utogether. They push each other off in the direction perpendicular to u,spending the energy E. What is the angle between the velocities of theastronauts after the push-off?
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