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12)4.5J(3) J22(4)9J10, A body of mass m 10 kg is moving in a medium and experiences a frictional force Fk Its initialspeed is vo E 10 ms". If after 10 s, its energy is gmv3, the value of kK will be(1) 10 Kg m's (2) 10*Kg m(3) 10 Kg s[JEE (Main) 2017; 4/120,-11(4) 10 Kg m-1

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