First, calculate the initial velocity of the dog given with the vertical height and the acceleration due to gravity which is calculated through the equation, 2ad = Vo² Substituting the known values, 2(9.8 m/s²)(1.2 m) = V₀² V₀ = 4.85 m/s The kinetic energy is solved through the equation, KE = 0.5mv² Substituting the known values to the latest equation, KE = 0.5 (7.2 kg)(4.85 m/s)² KE = 17.46 J Thus, the kinetic energy is 17.46 J.
