Two particles of masses m, and m, separated by a horizontal distance D are let go from the same height h at different times. Particle 1 starts at t =0, and particle 2 is let go at t = T. Find the verticalposition of the center of mass at a time before the first particle strikes the ground. Assume no air resistance. (Enter your answer as a function of time. Assume the +y-axis points straight up with y :ground. Use any variable or symbol stated above along with the following as necessary: g.)= 0 at the0 T

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