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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
10 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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