Question: 4. An engineer proposes the following control function for a motor-controlled door:: A (t) = 400the t , t 2 0 Where A is the


4. An engineer proposes the following control function for a motor-controlled door:: A (t) = 400the t , t 2 0 Where A is the angle in degrees and t is in seconds. a) Find the maximum Angle to which the door opens, rounded to 1 decimal place. (4) b) Does this function do a good job? Explain. (2)
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