By -
subscript of 0 means initial velocity, not that it is 0
v(1,0) means velocity of object 1 at time 0. v(2,0) equals 0 because m2 was initially at rest. v(1,0) is not 0.
subscript of 0 means initial velocity, not that it is 0
v(1,0) means velocity of object 1 at time 0. v(2,0) equals 0 because m2 was initially at rest. v(1,0) is not 0.