Bob has a helicopter and from the launch pad, he flies the following path: first, he...

 

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Bob has a helicopter and from the launch pad, he flies the following path: first, he travels from the launch pad a distance of 20 km at a heading of 30° East of South (240°), then he flies 45 km heading 65° West of North (155°). After this, he flies 50 km heading 70° West of North (160°). Now he's ready to return to the launch pad. What is the displacement vector that he needs to take to return directly to the launch pad, from his present location? Bob has a helicopter and from the launch pad, he flies the following path: first, he travels from the launch pad a distance of 20 km at a heading of 30° East of South (240°), then he flies 45 km heading 65° West of North (155°). After this, he flies 50 km heading 70° West of North (160°). Now he's ready to return to the launch pad. What is the displacement vector that he needs to take to return directly to the launch pad, from his present location?