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A force of 60n is acting perpendicular to the force of 80n magnitude of resultant force is (a) 20n (b) 70n (C) 100n (D) 140n

A force of 60n is acting perpendicular to the force of 80n magnitude of resultant force is (a) 20n (b) 70n (C) 100n (D) 140n

Grade:11

1 Answers

Nitin
110 Points
4 years ago
[c] 100 Newton 
 
using Pythagoras theorem  
i.e sqrt[602+802]
 
Method two:
 Let the force be :  80i+60j 
Now take the magnitude. of the vector

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