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# Two bodies of mass 4 kg and 5 kg are moving along east and north directions with velocities 5 m/s and 3 m/s respectively. Magnitude of the velocity of center of mass of the system is

$(a)\;\frac{25}{9}\; m/s \quad (b)\;\frac{9}{25}\; m/s \quad (c)\;\frac{41}{9}\; m/s \quad (d)\;\frac{16}{9}\;m/s$

$(a)\;\frac{25}{9}\; m/s$