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1 of 8 0-day streak

Form and use periodic sine and cosine models

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recognise:evaluate:daily-environment:cos:maximumrecognise:evaluate:daily-environment:cos:minimumrecognise:evaluate:daily-environment:sin:rising-meanrecognise:evaluate:daily-environment:sin:falling-meanrecognise:evaluate:rotation:cos:maximumrecognise:evaluate:rotation:cos:minimumrecognise:evaluate:rotation:sin:rising-meanrecognise:evaluate:rotation:sin:falling-meanrecognise:evaluate:bounded-oscillation:cos:maximumrecognise:evaluate:bounded-oscillation:cos:minimumrecognise:evaluate:bounded-oscillation:sin:rising-meanrecognise:evaluate:bounded-oscillation:sin:falling-meanrecognise:evaluate:seasonal:cos:maximumrecognise:evaluate:seasonal:cos:minimumrecognise:evaluate:seasonal:sin:rising-meanrecognise:evaluate:seasonal:sin:falling-meaninterpret:evaluate:daily-environment:cos:maximuminterpret:evaluate:daily-environment:cos:minimuminterpret:evaluate:daily-environment:sin:rising-meaninterpret:evaluate:daily-environment:sin:falling-meaninterpret:evaluate:rotation:cos:maximuminterpret:evaluate:rotation:cos:minimuminterpret:evaluate:rotation:sin:rising-meaninterpret:evaluate:rotation:sin:falling-meaninterpret:evaluate:bounded-oscillation:cos:maximuminterpret:evaluate:bounded-oscillation:cos:minimuminterpret:evaluate:bounded-oscillation:sin:rising-meaninterpret:evaluate:bounded-oscillation:sin:falling-meaninterpret:evaluate:seasonal:cos:maximuminterpret:evaluate:seasonal:cos:minimuminterpret:evaluate:seasonal:sin:rising-meaninterpret:evaluate:seasonal:sin:falling-meanNOWMix of allRecommended
Question 1 of 8

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A record is made of the position of a vibrating sensor

Readings at equal time intervals are 0, 2, 4, 2, 0 mm. The observation window shows one rise and fall

The observations alone do not establish a periodic model. The extrema, period and phase anchor below are supplied for the separate calculation

Let y(t) be the position of a vibrating sensor, measured in mm, where t is measured in seconds

The maximum is \(4\) mm and the minimum is \(-4\) mm

The full period is \(10\) seconds

The modelling domain is \(\left[0,30\right]\) seconds

(a)1 mark

Which description best classifies these observations for a periodic model?

(b)3 marks

Enter the amplitude, equilibrium value and period