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Dan B
Answers (1)
Mass1(tackler) x V1(tackler) + M2(halfback) x V2(halfback) = (M1 + M2) x V(combined) or m1(v1) x m2(v2) = (m1+m2)v === solve for v ==== (remember, they are running in opposite directions, one velocity should be in the negative direction)