Dimensions of kinetic energy are
$M{L^2}{T^{ - 2}}$
${M^2}L{T^{ - 1}}$
$M{L^2}{T^{ - 1}}$
$M{L^3}{T^{ - 1}}$
Dimensions of kinetic energy are
Kinetic energy = $\frac{1}{2}m{v^2} = M{[L{T^{ - 1}}]^2} = [M{L^2}{T^{ - 2}}]$