In the figure, a 2.6 kg block is accelerated from rest by a compressed spring of spring constant 660 N/m. The block leaves the spring at the spring's relaxedlength and then travels over a horizontal floor with a coefficient of kinetic friction -0.272. The frictional force stops the block in distance D 7.9 m. Whatare (a) the increase in the thermal energy of the block-floor system, (b) the maximum kinetic energy of the block, and (c) the original compression distanceof the spring?DURRESNo friction

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