Two astronauts, each with a mass of 57 kg, are connected by

Last updated: 7/23/2022

Two astronauts, each with a mass of 57 kg, are connected by a 6.3 m massless rope. Initially they are rotating around their center of mass with an angular velocity of 0.9 rad/s. One of the astronauts then pulls on the rope shortening the distance between the two astronauts to 4.9 m. What is the change in the rotational kinetic energy (in J) of this system? You may model each astronaut as a point particle.