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a person walks first 10 km north and 20 km east, then the resultant vector is ​a). 22.36km b). 22.46km c). 25.23km d). 20.36km i want the solution of this question

a person walks first 10 km north and 20 km east, then the resultant vector is
​a). 22.36km
b). 22.46km
c). 25.23km
d). 20.36km 
 
 
i want the solution of this question

Grade:12th pass

1 Answers

Sourabh Singh IIT Patna
askIITians Faculty 2104 Points
6 years ago
Hii student.

as the direction travelled is north and east we will tAKE IT AS POSITIVE “I” and POSITIVE “j” direction so the final vector is 10j+ 20i. Tke the magnitude of the nfollowing you will get the answer as “A

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