The depth of water, w metres, in a particular harbour can be modelled by the function w(t) = a cos (bt) + d where t is the length of time, in minutes, after 06 : 00. On 20 January, the first high tide occurs at 06:00, at which time the depth of water is 18 m. The following low tide occurs at 12: 15 when the depth of water is 4m. This is shown in the diagram.
The depth of water, w metres, in a particular harbour can be modelled by the function w(t) = a cos (bt) + d where t is the length of time, in minutes, after 06 : 00. On 20 January, the first high tide occurs at 06:00, at which time the depth of water is 18 m. The following low tide occurs at 12: 15 when the depth of water is 4m. This is shown in the diagram.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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