Given data:
Speed: 10 m/s
Ke = 50 J
m = ?
We can use the kinetic energy formula to find the mass of the toy truck:
[tex]Ke=\frac{mv^2}{2}[/tex][tex]\begin{gathered} 50=\frac{m*10^2}{2} \\ \\ 50*2=100m\Rightarrow\frac{100}{100}=m\Rightarrow m=1kg \end{gathered}[/tex]m = 1kg
