Answer:
Explanation:
Given
mass of automobile [tex]m=1000\ kg[/tex]
velocity of automobile [tex]v=10\ m/s[/tex]
If the automobile crashes into the brick wall then it's kinetic energy is converted into thermal and demolishing energy to wall.
Car completely stops as it crashes into the wall so Energy converted into demolition and thermal energy
[tex]E=\frac{1}{2}mv^2[/tex]
[tex]E=\frac{1}{2}\times 1000\times (10)^2[/tex]
[tex]E=50\ kJ[/tex]
