HW 2 - DATE: DUE: ENG102, homework set #2. October 1, 2011...

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DATE: October 1, 2011 DUE: October 7, 2011 ENG102, homework set #2. 1. After Sample Problem 2/8 in Text: a. Do the problem, answering questions a-d, but start by converting all units into sensible units, e.g., mi km, ft m, etc. This should be done while maintaining the physics of the problem intact. Suppose the rocket is experiencing an air-drag that contributes to the total accelera- tion with - α ¯ v , where α is a non-negative constant. Let us denote the angle of the rocket relative to horizontal with θ (that angle is zero as the problem is stated in the book – a positive angle θ will mean that the nose of the rocket will point up relative to its center of mass; this is not necessarily the trajectory of the rocket). b. For α = 0 calculate, as a function of θ [0 , π 2 ] the total acceleration ¯ a on the rocket. Display the result in the two coordinate systems ¯ e n , ¯ e t and ¯ e x , ¯ e y . c. For

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HW 2 - DATE: DUE: ENG102, homework set #2. October 1, 2011...

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