Question

How to solve ? And What is the Answer ??

A spelunker is surveying a cave. She follows a passage 120 m straight west, then 290 m in a direction 45 east of south, and then 280 m at 30° east of north. After a fourth unmeasured displacement, she finds herself back where she started.

Answer 1

Answer 2

A spelunker is surveying a cave. She follows a passage 120 m$\mathrm{m}$ straight west, then 290 m$\mathrm{m}$ in a direction 45∘${}^{\circ }$ east of south, and then 280 m$\mathrm{m}$ at 30∘${}^{\circ }$ east of north. After a fourth unmeasured displacement, she finds herself back where she started.

Part A Part complete Use a scale drawing to determine the magnitude of the fourth displacement. Express your answer using two significant figures. 230mm SubmitPrevious Answers  Correct Correct answer is shown. Your answer 228.15$228.15$ m$\mathrm{m}$ was either rounded differently or used a different number of significant figures than required for this part. Important: If you use this answer in later parts, use the full unrounded value in your calculations. Part B Determine the direction of the fourth displacement.