Find the time beyond which the distance between the weight and equilibrium does not exceed 0.8 ft. (Round your answer to 2 decimal places.)

Question

The displacement from equilibrium of a weight oscillating on the end of a spring is given by

y = 1.21 e^−0.22t cos(4.9t)

where y is the displacement (in feet) and t is the time (in seconds). Use a graphing utility to graph the displacement function for 0 ≤ t ≤ 10. Find the time beyond which the distance between the weight and equilibrium does not exceed 0.8 ft. (Round your answer to 2 decimal places.)

t=____s

Answer 1