Question

Ec= ? M =5,2 kg v = 10 m/s

Answer 1

Resposta:

Ec = ? (energia cinética)

m = 5,2 kg (massa)

v = 10 m/s (velocidade)

$\sf E_c=\dfrac{m\cdot v^2}{2}$

$\sf E_c=\dfrac{5,\!2\cdot 10^2}{2}$

$\sf E_c=\dfrac{5,\!2\cdot 100}{2}$

$\sf E_c=\dfrac{520}{2}$

$\red{\sf E_c=260~J}$