A man travels 1mile due east, 5mile due south, 2mile due east and finally 9miles due north. How far is the starting point?
- 3miles
- 5miles
- 4miles
- between 5miles and 9miles
- I don’t know the answer
Explanation
Net eastward displacement =1+2=3 miles
Net northward displacement =−5+9=4 miles
Net displacement d=3i^+4j^
∣∣∣∣d∣∣∣∣=32+42=5 miles
Net eastward displacement =1+2=3 miles
Net northward displacement =−5+9=4 miles
Net displacement d=3i^+4j^
∣∣∣∣d∣∣∣∣=32+42=5 miles
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