Respuesta :

Answer:

3 Joules

Explanation:

KE1 + W = KE2

[tex]\frac{1}{2}mv_{1}^{2} +W=\frac{1}{2}mv_{2}^{2}[/tex]

[tex]v_{1}^{2} +W=v_{2}^{2}[/tex]

[tex](1)^{2}+W=(2)^{2}\\1+W=4\\W=3\ Joules[/tex]

Answer: 1,500 J

Explanation: A-P-E-X