Part D Application App 12 Marks 1 The Depth Of The Water At The End Of A Pier Is 2 M At Low Tide And 12 M At High Ti 1 (495.04 KiB) Viewed 46 times
Part D Application App 12 Marks 1 The Depth Of The Water At The End Of A Pier Is 2 M At Low Tide And 12 M At High Ti 2 (223.46 KiB) Viewed 46 times
Part D-Application [APP – 12 marks] 1 The depth of the water at the end of a pier is 2 m at low tide and 12 m at high tide. There are 6 hours between low and high tide. The first high tide occurs 6 hours after midnight. a) Write both a sine and cosine equation that represents the depth of the water, where the height, h, is in metres, and time, 1, in hours. vvv b) Determine the depth of the water at 4:25 a.m. and 3:30 p.m. vv
2. The blades on a windmill turn at a frequency of 20 revolutions per minute. The length of each blade is 3.5 m, and a point on the tip of one blade is 8 m off the ground when it is at its lowest point. Att 0, the point on the blade is at the highest point. Estimate the instantaneous rate of change at t = 4 seconds.
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