Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

help While exploring a cave, a spelunker starts at the entrance and moves the fo

ID: 2112633 • Letter: H

Question

help

While exploring a cave, a spelunker starts at the entrance and moves the following distances. She goes 75.0 m north, 250 m east, 111 m at an angle 30.0 degree north of east, and 185 m south. Find the resultant displacement from the cave entrance. The figure below suggests the situation but is not drawn to scale. magnitude unit(s) direction degree south of east Consider the two vectors A rightarrow = i - j and B rightarrow = - i - 6 j . Calculate A rightarrow + B rightarrow i + j Calculate A rightarrow - B rightarrow i + j Calculate |A rightarrow + B rightarrow| Calculate |A rightarrow - B rightarrow| Calculate the directions of A rightarrow + B rightarrow and A rightarrow - B rightarrow. A rightarrow + B rightarrow degree (counterclockwise from the +x axis) A rightarrow - B rightarrow degree (counterclockwise from the +x axis) Need Help?

Explanation / Answer

1)346.128 m in east

54.5 m south

magnitude = 350.39 m

8.948 degrees south of east

2)a)0 i -7 j

b)2 i + 5 j

c)7

d)5.385

e)A+B angle =270 degrees

A-B angle = 68.19 degrees