NASA puts a satellite in space which consists of two (32. kg each) masses connected by a 12. meter long light cable, as shown in Figure 8-4. The entire system initially is rotating 4.0 rpm about an axis (at the center of mass) perpendicular to the cable. Motors in each mass reel out more cable so that the masses double their separation (to 24. m).

(a) What is the final ROTATIONAL VELOCITY?
(b) The final KINETIC ENERGY is what fraction of the initial?

Question

NASA puts a satellite in space which consists of two (32. kg each) masses connected by a 12. meter long light cable, as shown in Figure 8-4. The entire system initially is rotating 4.0 rpm about an axis (at the center of mass) perpendicular to the cable. Motors in each mass reel out more cable so that the masses double their separation (to 24. m).
 
(a) What is the final ROTATIONAL VELOCITY?
(b) The final KINETIC ENERGY is what fraction of the initial?

Quizplus · Accepted Answer

The Answer of NASA puts a satellite in space which consists of two (32. kg each) masses connected by a 12. meter long light cable, as shown in Figure 8-4. The entire system initially is rotating 4.0 rpm about an axis (at the center of mass) perpendicular to the cable. Motors in each mass reel out more cable so that the masses double their separation (to 24. m).
 
(a) What is the final ROTATIONAL VELOCITY?
(b) The final KINETIC ENERGY is what fraction of the initial?

NASA Puts a Satellite in Space Which Consists of Two