Question

07) Determine a energia cinética de um móvel com 30kg de massa e velocidade de 2 m/s. Lembrando: Ec = m.v? 2​

Answer 1

$\large\displaystyle\rm E_C=\dfrac{m\cdot v^2}{2}$

$\large\displaystyle\rm E_C=\dfrac{30\cdot2^2}{2}$

$\large\displaystyle\rm E_C=\dfrac{30\cdot4}{2}$

$\large\displaystyle\rm E_C=\dfrac{120}{2}$

$\large\displaystyle\text{ \boxed{\boxed{ \rm E_C=60\,J}} }$