Problem: A certain comet of mass m at its closest approach to the Sun is observed to be at a distance r, from the center of the Sun and to be moving at speed v,, as shown in the figure. Orbit in the plane of the page Later, the comet is observed at a distance r, from the center of the Sun, and the angle between ř2 and the comet's velocity vector is measured to be 0. What is the comet's speed, ? Note: v, lies in the plane of the orbit and points into the page. rzv1 sin 0 5.AO T2V1 V2 BO rị cos 0 v2 r2cos 0 CO r2V1 v2 ri sin 0 DO T'1V1 V2 EO r2sin 0

Problem: A certain comet of mass m at its closest approach to the Sun is observed to be at a distance r, from the center of the Sun and to be moving at speed v,, as shown in the figure. Orbit in the plane of the page Later, the comet is observed at a distance r, from the center of the Sun, and the angle between ř2 and the comet's velocity vector is measured to be 0. What is the comet's speed, ? Note: v, lies in the plane of the orbit and points into the page. rzv1 sin 0 5.AO T2V1 V2 BO rị cos 0 v2 r2cos 0 CO r2V1 v2 ri sin 0 DO T'1V1 V2 EO r2sin 0