Starting at t = 0, a horizontal net force F=(0.290N/s)t(i)+(−0.450N/s^2)t^2(j) is applied to a box that has an initial momentum p=(−2.90kg⋅m/s)i +(4.00kg⋅m/s))j .  a) What is the x-component of the momentum of the box at t = 1.90 s ? b) What is the y-component of the momentum of the box at t = 1.90 s ?

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