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x Your answer is incorrect. A rock orbits a star in the xy plane. Its mass is 110 kg and its velocity is (2 x 10¹.5 x 10¹,0) m/s when it is at location (-7× 10%, - 4 x 10,0) m relative to the center of a star, and the star is the only significant influence on the rock's motion. At a later time the rock is at location (0,9 x 10%,0) m relative to the center of the star and its velocity is (v. 0,0). What is the rock's speed vy at this later time? Note that the only non-zero component of the initial translational angular momentum is the z component. vy = -15555.56 eTextbook and Media Hint m/s Which fundamental principle should you use here? Save for Later Assistance Used Attempts: 1 of 3 used Submit Answer