A 6.00 kilogram block of ice is located against a horizontal spring that has force constant k = 210 N/m and is compressed 0.038 meter. The spring is released and accelerates the block along a horizontal surface. You can ignore friction and the mass of the spring.
(a) Compute the work done on the block by the spring during the motion of the block from its initial position to where the spring has returned to its uncompressed length.
J
(b) Determine the speed of the block after it leaves the spring?
m/s