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Unformatted text preview: θ =75 degrees. It also reports that dr/dt = 40m/sec; d 2 r/dt 2 = 28m/sec 2 ; d θ /dt =0.15 radians/second; and d 2 θ /dt 2 = 0.01 radians/sec 2 . Recall i = e r cos θe θ sin θ ; j = e r sin θ + e θ cos θ ; At this moment: What is the horizontal component of the velocity of the airplane? What is the magnitude  a  of the acceleration of the airplane? 3] A 5m long stick that retains contact with the wall at A, and the floor at B, is moving to the right and up. At the pictured instant point B is moving at the constant speed of 1m/sec to the right. What is the speed of A? What is the acceleration of A?...
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 Spring '10
 richard
 Acceleration, Velocity, Physical quantities, Sample Exam number

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