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1.10 G: Differentiation

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Question 63

A research probe measures the atmospheric pressure PPP (in kPa) relative to its horizontal distance ddd (in km) from the center of a stable weather system, modeled by the function P(d)=101−120(d2−25)2P(d) = 101 - \frac{1}{20}(d^2 - 25)^2P(d)=101−201​(d2−25)2 for d≥0d \ge 0d≥0.

Determine the equation of the normal to the graph of pressure against distance at the point where d=5d = 5d=5.

Select your answer from the options below:

P=101 P = 101 P=101 P=5 P = 5 P=5 d=101 d = 101 d=101 d=5 d = 5 d=5
[3]
Markscheme

1.10 G: Differentiation Questions

  1. A Level
  2. /Maths
  3. /1.10 G: Differentiation

375 exam-style questions on AQA A Level Maths 1.10 G: Differentiation, covering 1.10.1 The derivative and second derivative, 1.10.2 Differentiating standard functions, 1.10.3 Applications of differentiation, 1.10.4 Product, quotient and chain rules (A-level only), 1.10.5 Implicit and parametric differentiation (A-level only), and 1.10.6 Constructing differential equations (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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