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The kinetic energy of a body of mass 15 kg is 30 joule what is its momentum

Answer»
k = \frac{1}{2} m {v}^{2} \\ 30 = \frac{1}{2} (15) {v}^{2} \\ {v }^{2} = \frac{30 \times 2}{15} \\ {v}^{2} = 4 \\ v = 2 \frac{m}{s} \\ \\ \\ \\ now..... \\ momentum \: = mv \\ p = mv \: \\ p = (15)(2) \\ p = 30 \frac{kg \times m}{s} \\ \\ \\
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