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07-02-2020
Physics

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A roller coaster moves 200 ft horizontally, then rises 135 ft at an angle of 30.0Â° above the horizontal. Next, it travels 135 ft at an angle of 40.0Â° below the horizontal. Use graphical techniques to find the roller coaster's displacement from its starting point at the end of this movement.

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Arshavin023 Arshavin023

09-02-2020

Answer:

171 ft

Explanation:

The distance to be calculated is AB

AB = AC + BC

AC; Cos 60 = AC ÷ 135

AC = 135 cos 60 = 67.5 ft

BC; Cos 40 = BC ÷ 135

BC = 135 cos 40 = 103.416 ft

AB = 67.5 + 103.416 = 170.9159998210 ft

Distance between starting point to end point = 171 ft

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