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Unformatted text preview: angle of the elevation of the Sun is 30 and is increasing at 0 . 1 per minute. Let the length of the shadow of the tower be x feet and the angle of elevation of the Sun (in radians). d dt = 180 . 1 = 1800 per minute. We need to Fnd dx dt = / 6 . 200 x = tan ; x = 200 tan = 200 cot . dx dt =-200 csc 2 d dt . dx dt = / 6 =-200 ft csc 2 6 1800 1 min =- 1 2 2 9 12 in min A C B x 200feet Answer : 3 inch per minute end...
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This note was uploaded on 03/13/2010 for the course MATH 151 taught by Professor Any during the Winter '08 term at Ohio State.
- Winter '08