Question

a roller coaster moves 85 m horizontally, then travels 45 m at an angel of 30 above the horizontal. what is its displacement from its starting point? use graphical techniques.

Answer 1

Step-by-step explanation:

Dx = 85 + 45·cos 30° = 85 + 45·(√3 / 2) ≈ 124 m

Dy = 45·sin 30° = 45·(1/2) = 22.5 m

D = √ (Dx² + Dy²) = √ (124² + 22.5²) ≈ 126 m

Answer 2

Step-by-step explanation:

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