AP EAMCET202123 Aug 2021Morning ShiftPhysicsMotion in One DimensionActual
When a particle moved from point A(2,2,3) to point B(6,6,9) , its displacement vector is
Options
- A4 i +4 j +6 k
- B8 i +8 j +12 k
- C4 i +8 j +6 k
- D8 i +4 j +6 k
Correct answer
A. 4 i +4 j +6 k
Step-by-step solution
Given, position A(2,2,3) and position B(6,6,9) Position vector of point A and B aligned A & =2 i +2 j +3 k and B & =6 i +6 j +9 k Now, A B & = B - A & =(6-2) i +(6-2) j +(9-3) k & =4 i +4 j +6 k aligned