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1.5.17 Trigonometric functions in context

Card 1 of 23

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

Card 1 of 23

1.5.17 Trigonometric functions in context Flashcards

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

23 flashcards on OCR A Level Maths 1.5.17 Trigonometric functions in context: the key formulae, methods and definitions you need to recall for Paper 1, Paper 2 and Paper 3.

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