1. The problem statement, all variables and given/known data The vector position of a 3.15 g particle moving in the xy plane varies in time according to the following equation. r1 = (3i+3j)t + 2jt^2 At the same time, the vector position of a 5.00 g particle varies according to the following equation. r2= 3i-2it^2 -6jt For each equation, t is in s and r is in cm. Solve the following when t = 2.50: (a) Find the vector position of the center of mass. i cm j cm (b) Find the linear momentum of the system. i g-cm/s j g-cm/s (c) Find the velocity of the center of mass. i cm/s j cm/s (d) Find the acceleration of the center of mass. i cm/s2 j cm/s2 (e) Find the net force exerted on the two-particle system. i μN j μN 2. Relevant equations im really not sure about this i think for some of them you would use p=mv and for the center of mass you use 1/M integral of r?? 3. The attempt at a solution im not sure what to do first am i plugging in for t first? and then what do i do?