Kinetic energy is given by the equation:K.E. = 0.5mv2Therefore Matt has Kinetic energy:K.E. (Matt) = 0.5*(60)(5)2 = 750JAnd Rob has Kinetic energy:K.E. (Rob) = 0.5(30)*(5)2 = 375JTherefore Matt has the higher Kinetic Energy.(This can also be seen from observing that Matt is twice as heavy so will have twice as much Kinetic Energy)