Question

Chapter 13, Problem 071 Several planets Jupiter, Saturn, Uranus) are encircled by rings, perhaps composed of material that failed to form a satellite. In addition, many galaxies contain ring-like structures Consider a homogeneous thin ring of mass 3.2 x 1022 kg and outer radius 3.5 x 10 m (the figure). (a) What gravitational attraction does it exert on a partide of mass 57 kg located on the ring's central axis a distance 6.1 x 10 m from the ring center? (b) Suppose that starting at that point, the partide falls from rest as a result of the attraction of the ring of matter. What is the speed with which it passes through the center of the ring? Units (a) Number (b) Number Units Click if you would like to show Work for this questions on Show

Answer 1

071: Caso fnet = GMM (R²+82) fret . GMM (R² +82) (x²+R?) GM Mr (R²+821/2 feet 667x16") (3:22 1622X(53) (61018) (6.1² + 382) 9/2 (10792 I fuet - 2013 x 108 Pai + Kf; = PEx + left 6 -GMM to = - GMM + mv v² = – 29M [ Je Tu= 78.3 m/s