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ass12 - Practice Problems 12 1 What is the magnitude of the...

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Practice Problems 12 1 . What is the magnitude of the angular momentum of a 221.0 g particle travelling 2.46 m/s at position ( x,y )=(1.49 m, 2.06 m)? Answer: 1.12e+00 kg*m^2/s 2 .Given M =5.50 i +1.93 j -1.26 k and N =2.22 i -1.31 j -3.40 k , calculate the vector product M × N . Answer in the order xyz or ijk . Answer: -8.21E+00 1.59E+01 -1.15E+01 3 . A 1.50 kg particle moves in the xy plane with a velocity of v =(4.21 i -3.76 j ) m/s. Determine the magnitude of the particle's angular momentum about the origin when its position vector is r =(1.69 i +2.55 j ) m. Answer: 2.56E+01 kg*m^2/s 4 . The position vector of a particle of mass 2.46 kg is given as a function of time by r =(6.01 i +4.30 t j ) m. Determine the magnitude of the angular momentum of the particle about the origin. Answer: 6.36E+01 kg*m^2/s 5 . A uniform solid sphere with a radius of 0.445 m and a mass of 16.2 kg turns counterclockwise about a vertical axis through its center. Calculate the magnitude of its angular momentum when its angular speed is 2.81 rad/s.
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