Answer:1.6 kJ
Explanation:
Given
mass of truck [tex]m=200\ kg[/tex]
speed of truck [tex]v=4\ m/s[/tex]
We know kinetic Energy is the energy possessed by a moving body such that its value is given by product of mass and square of speed.
[tex]K.E.=\frac{1}{2}mv^2[/tex]
[tex]K.E.=\frac{1}{2}\times 200\times (4)^2[/tex]
[tex]K.E.=100\times 16[/tex]
[tex]K.E.=1600\ J\approx 1.6\ kJ[/tex]
