# What is the kinetic energy of a 16 kg object moving at 7/4 m/s?

##### 1 Answer
Mar 19, 2016

${E}_{k} = 24 , 5 \text{ } J$

#### Explanation:

${E}_{k} = \frac{1}{2} \cdot m \cdot {v}^{2}$
$m = 16 k g \text{ "v=7/4" } \frac{m}{s}$

${E}_{k} = \frac{1}{2} \cdot 16 \cdot {\left(\frac{7}{4}\right)}^{2}$
${E}_{k} = 8 \cdot \frac{49}{16}$
${E}_{k} = 24 , 5 \text{ } J$