The block weighs 4 kg and the spring without the block attached has a natural length of 5m. When the block is attached and at rest, the spring has length 7m. A force of 192 N is needed to keep the spring with the block attached to stretched to a length of 10 m. At time t = 0 the block is 3 m below the equilibrium position and moving down at a speed of 16 mis. a) Find the position of the block at time t. w) = E (Write your answer in phase-angle form, round your phase angle to two decimal places.) b) What is the furthest the block gets from its equilibrium position? 0" meters (round to 2 decimal places) c) What time does this occur? At time t = 0" 0.2325 . (round to 2 decimal places) d) When does the block first reach the equilibrium position? At time t = (round to 2 decimal places)

Parts (a) and (d) only

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