A body of mass 1kg moves with velocity 2i-3j+5k m/sec .Find it kinetic

1.	A body of mass 1kg moves with velocity 2i-3j+5k m/sec .Find it kinetic energy
Answer» v = 2i - 3j + 5k\|v\| = sqrt(4 + 9 + 25)\|v\| = sqrt(38)KE = mv^2/2KE = (1)(38)/2 = 19 J

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