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# week5 - Physics 1 Discussion Section Problem for the week...

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Physics 1 Discussion Section Problem for the week of April 26 - May 3, 2010 Instructions: Work this problem as a group. Hand in only one completed worksheet for your group, including all of the steps in the “I SEE” problem-solving process. Problem: Gliding and Climbing BACKGROUND INFORMATION: When an airplane is in ﬂight with the engine running, it is acted on by four forces. These are: (i) The weight of the airplane. (ii) The thrust provided by the engine, which pulls the airplane forward in the direction it is moving. (iii) The drag (air resistance), which pulls on the airplane opposite to the direction in which the airplane is moving. (iv) The lift provided by the wings, which pulls on the airplane in a direction perpendicular to the direction in which the airplane is moving. Question 1. Fred has just earned his private pilot license. He is ﬂying at an altitude H in a Piper Warrior, a small single-engine airplane of weight W . Suddenly, with- out any warning, the engine stops. The airplane be- gins to descend in a steady glide at a constant speed v through the air, with the nose of the plane pointed below the horizontal. In the glide, the magnitude

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week5 - Physics 1 Discussion Section Problem for the week...

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