12–187. The searchlight on the boat anchored 2000 ft from shore is turned on the automobile, which is traveling along the straight road at a constant speed 80 ft/s, Determine the angular rate of rotation of the light when the automobile is r= 3000 ft from the boat. *12-188. If the car in Prob. 12–187 is accelerating at 15 ft/s at the instant r = 3000 ft determine the required angular acceleration ë of the light at this instant. 80 ft/s 2000 ft Probs. 12–187/188

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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12–187. The searchlight on the boat anchored 2000 ft from
shore is turned on the automobile, which is traveling along
the straight road at a constant speed 80 ft/s, Determine the
angular rate of rotation of the light when the automobile is
r= 3000 ft from the boat.
*12-188. If the car in Prob. 12–187 is accelerating at
15 ft/s at the instant r = 3000 ft determine the required
angular acceleration ë of the light at this instant.
80 ft/s
2000 ft
Probs. 12–187/188
Transcribed Image Text:12–187. The searchlight on the boat anchored 2000 ft from shore is turned on the automobile, which is traveling along the straight road at a constant speed 80 ft/s, Determine the angular rate of rotation of the light when the automobile is r= 3000 ft from the boat. *12-188. If the car in Prob. 12–187 is accelerating at 15 ft/s at the instant r = 3000 ft determine the required angular acceleration ë of the light at this instant. 80 ft/s 2000 ft Probs. 12–187/188
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