A block of mass m = 2.5 kg slides head on into a spring of spring constant k = 320 N/m. When the block stops, it has compressed the spring by 7.5 cm. The coefficient of kinetic friction between the block and the floor is 0.25. While the block is in contact with the spring and being brought to rest, what are…
(Use g = 9.8 m/s)
a) The work done on the block by the spring:
b) The work done on the block by the floor:
c) The block’s speed just as it reaches the spring:
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