1. The problem statement, all variables and given/known data A force F = (2ti + 3t^2j) N acts on an object moving in the xy plane. Find the magnitude of change in momentum of the object in time interval t=0 to t=2 (The bold ones are vectors) 2. Relevant equations Ft=change in momentum 3. The attempt at a solution magnitude of F = (4t^2 + 9t^4)^(1/2) taking t^2 common: t(4+9t^2)^(1/2) Ft=delta p so, delta p = 2t(4 + 9t^2 ) ^ (1/2) But the answer doesn't have ts in it.