X Consider the above system of two blocks connected by massless frictionless pulley and rope, with the pulley attached to the ceiling by a spring. The spring is initially at its relaxed length, so the system starts moving downward under the inuence of gravity. Include the blocks and the spring in the momntum and energy totals (note that the rope and pulley are massless so they do not contribute to the energy or momentum). Answer the following questions relating the energy and momentum from the time the system is released to sometime later before the spring has reached its maximal extension. Is the total energy (kinetic, gravitational, and elastic) conserved? (Y/N) Is the total momentum in the x direction (see axes in the gure) conserved? (Y/N) Is the total momentum in the y direction (see axes in the gure) conserved? (YIN) QUESTION 17 X Consider a Cart rolling down hill with no friction. Only include the cart's energy and momentum in the totals. Is the total energy (kinetic, gravitational, and elastic) conserved? (Y/N) Is the total momentum in the x direction (see axes in the figure) conserved? (YIN) Is the total momentum in the y direction (see axes in the figure) conserved? (Y/N)