Question

the resultant of forces f1 = 3i-4j+2k , f2 = 2i+3j-k and f3 = 2i+4j+2k​

Answer 1

Explanation:

These are the three forces mentioned in the question.

F1=3i-4j+2k

F2=2i+3j-k

F3=2i+4j-5k

Resultant of these forces in sum of these forces. So add up these three.

There by Resultant of these forces is F1+F2+F3

which is equal to (3i-4j+2k +(2i+3j-k )+(2i+4j-5k )

7i+3j-4k is the required answer