Speed deamplifier. In Fig. 9-74 attached, block 1 of mass m₁ slides along an x axis on a frictionless floor at speed 4.00 m/s.Then it undergoes a one-dimensional elastic collision with stationary block 2 of mass m₂ = 2.00m₁. Next, block 2 undergoes a one-dimensional elastic collision with stationary block 3 of mass m₃ = 2.00m₂. (a) What then is the speed of block 3? Are (b) the speed, (c) the kinetic energy, and (d) the momentum of block 3 greater than, less than, or the same as the initial values for block 1?