a 3.5kg block is accelerated by a (horizontally) compressedspring whose spring constant is 640 N/m. After leaving thespring at the spring's relaxed length, the block travels over ahorizontal surface, with a coefficient of kinetic friction of 0.25,for a distance of 7.8 m before stopping.
a) What is the increase in the thermal energy of theblock-floor system?
b) What is the maximum kinetic energy of the block?
c) Through what distance is the spring compressed before theblock begins to move?