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1. DEMONSTRATE AN UNDERSTANDING OF THE BASIC MATHEMATICAL TECHNIQUES REQUIRED BY ENGINEERS.

Engineering Mathematics 1

1. DEMONSTRATE AN UNDERSTANDING OF THE BASIC MATHEMATICAL TECHNIQUES REQUIRED BY ENGINEERS.

2. APPLY THE MATHEMATICAL TECHNIQUES REQUIRED TO SOLVE PROBLEMS.

3. DEVELOP AN UNDERSTANDING OF CALCULUS AND APPLY CALCULUS TO SIMPLE ENGINEERING PROBLEMS

 

1. The MOD are proposing to house a radar system inside a geodesic dome. The dome is in the form of a sphere of diameter 42m, part of which will be below ground. One option being considered is that the radar system will be housed inside a right circular cone inside the sphere as shown in the diagram below: Before making a decision, it is necessary to determine the dimensions of the cone that maximises the available volume. (i) If h is the height of the cone, show that the volume of the cone in terms of h is given by `

 

(ii) Using calculus determine the value of h that maximises the volume of the cone [3 marks] (iii) Using calculus methods show that the value you have obtained in (ii) is a maximum [2 marks] (iv) Determine the radius of the base and the volume of the cone

 

2. The formula for the period, T, of a pendulum of length depends on its length L. For small oscillation the formula is 𝑇𝑇 = 2 πœ‹πœ‹ �𝐿𝐿 𝑔𝑔 . For larger oscillations the formula for the period T is given by the following integral: 𝑇𝑇 = 4 �𝐿𝐿 𝑔𝑔 ∫ 𝑑𝑑𝑑𝑑 οΏ½1−π‘˜π‘˜2 sin2(π‘₯π‘₯) πœ‹πœ‹/2 0 where π‘˜π‘˜ depends on the angle from which the pendulum is released. Complete the following table using k = 0.8: x 0.0 πœ‹πœ‹ 12 πœ‹πœ‹ 6 πœ‹πœ‹ 4 πœ‹πœ‹ 3 5 πœ‹πœ‹ 12 πœ‹πœ‹ 2 1 οΏ½1 − π‘˜π‘˜2sin2(π‘₯π‘₯) For a pendulum, of length 1.5m, estimate the period of the pendulum (to 6dp) using (i) Trapezium rule and (ii) Simpson’s rule [10 marks]

 

3. The surface of an air intake is machined according to the function 𝑓𝑓(π‘₯π‘₯, 𝑦𝑦) = 6 π‘₯π‘₯3 + 3 𝑦𝑦2 − 8 π‘₯π‘₯ + 2 𝑦𝑦 + 1 part of which is shown below. Find and classify the locations of the stationary points of this functio


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