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A particle of mass 2kg has the position vector r=(4t-8)i+(2t^2-3)j where t>0 or t=0 of the components are in meters.
i) What is the linear momentum of the particle at some time t?
ii) What is the direction of the particle at time t=2?
iii) What is the magnitude in kgm^2/s of the angular momentum at time t=2?
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