1
answer
0
watching
90
views
23 Nov 2019
A space station is constructed in the shape of a hollow ring ofmass 4.65 104 kg. Members of the crew walk on a deck formed by theinner surface of the outer cylindrical wall of the ring, withradius 115 m. At rest when constructed, the ring is set rotatingabout its axis so that the people inside experience an effectivefree-fall acceleration equal to g. (See figure below.) The rotationis achieved by firing two small rockets attached tangentially toopposite points on the rim of the ring.
(a) What angular momentum does the space station acquire?
1 kg · m2/s
(b) For what time interval must the rockets be fired if each exertsa thrust of 120 N?
2 s
A space station is constructed in the shape of a hollow ring ofmass 4.65 104 kg. Members of the crew walk on a deck formed by theinner surface of the outer cylindrical wall of the ring, withradius 115 m. At rest when constructed, the ring is set rotatingabout its axis so that the people inside experience an effectivefree-fall acceleration equal to g. (See figure below.) The rotationis achieved by firing two small rockets attached tangentially toopposite points on the rim of the ring.
(a) What angular momentum does the space station acquire?
1 kg · m2/s
(b) For what time interval must the rockets be fired if each exertsa thrust of 120 N?
2 s
Elin HesselLv2
12 Mar 2019
