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1.5.17 Trigonometric functions in context

Which trigonometric function gives a vector component adjacent to the given angle?

A

Use cosine.

B

For magnitude VVV at angle θ\thetaθ above the horizontal, the horizontal component is Vcos⁡θ\boxed{V\cos\theta}Vcosθ​ and the vertical component is Vsin⁡θV\sin\thetaVsinθ.

C

For launch speed uuu at angle θ\thetaθ, projectile displacement is x=(ucos⁡θ)t\boxed{x=(u\cos\theta)t}x=(ucosθ)t​ horizontally and y=(usin⁡θ)t−12gt2y=(u\sin\theta)t-\frac12gt^2y=(usinθ)t−21​gt2 vertically.

D

−g-g−g

1.5.17 Trigonometric functions in context Flashcards

  1. A Level
  2. /Maths
  3. /1.5.17 Trigonometric functions in context

Flashcards for OCR A Level Maths 1.5.17 Trigonometric functions in context, covering the key formulae, methods and definitions you need to recall for Paper 1, Paper 2 and Paper 3. 23 cards, matched to the OCR A Level Maths (H240) specification. Recall questions account for roughly 50% of marks at A Level Maths, so these target the marks you can secure before the paper starts.