ENGR 1412 F11 Project#2

# ENGR 1412 F11 Project#2 - ENGR 1412 INTRODUCTION TO...

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ENGR 1412 - INTRODUCTION TO COMPUTER PROGRAMMING DR. AJ JOHANNES, FALL 2011 1 of 4 Project #2 - Due during the Week of Sept 12-16, 2011 (Beginning of Labs) This project is mainly about Function programs and Excel Solver. 1) Consider an application of Project #1. Using Solver , determine the drag coefficient (C D ) for a 0.22 long rifle bullet ( diameter 5.6 mm, length 25.4 mm, mass 2.1 g ). We know that the bullet was fired at an angle of 25 o and has a muzzle velocity of 500 m/s. The bullet travelled 5.01 m in the x-direction in approximately 4.4 sec, in a tank filled with water. (Hint: find the value C D for which the x-direction distance, D calculated using Equation 2 in Project 1 equals the measured distance of 5.01 m). 2) Write VBA Function programs to calculate volume and surface area for a paraboloid of any given radius, r and height, h 2 1 2 V r h π = and { } 3 2 2 3 2 2 4 6 A r S r h r h = + 3) Write VBA Function programs to compare the performance of finite difference relations to calculate the derivative of the function: f(x) = Sin(x) + Cos(x) . Use the following three finite difference relations and suggest which one compares the best with the analytical solution for d[f(x)]/dx (Use the same value for Δx in all three equations; x, Δx in radians ). a.

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ENGR 1412 F11 Project#2 - ENGR 1412 INTRODUCTION TO...

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