#1 : Three masses of 2 kg, 3k g, and 4 kg are experiencing the forces , , and respectively. if the masses started at rest from the locations (-1,1 ), ( 4,-2 ) and ( 3,3 ) respectively. Calculate each of the following (write each answer as a coordinate pair of vector as appropriate) Most of these use the basic kinematic equations: a) The location of center of mass at time t = 0 seconds b) The location of center of mass at time t = 6 seconds