Home › TS EAPCET (Engineering) › Mathematics › Euclidean Vector › Which vector has magnitude 10 and the direction …
Which vector has magnitude 10 and the direction of 3i - 4j?
A-6i + 8j
B30i - 40j
C3i - 4j
D6i - 8j
Answer & Solution
Correct answer: D. 6i - 8j
3i - 4j has length 5, so doubling it gives length 10 in the same direction: 6i - 8j.
Related questions
A walker goes 3 m east then 4 m west. What is the net displacement?Forces of 3 N east and 4 N north act together. What is the resultant size?For any two vectors, a + b always equals what?The sum of a vector a and its opposite -a is what?For what value of k are (k, 3) and (2, -4) perpendicular?For what value of k is (k, 2) parallel to (3, 6)?Which vector is parallel to (1, 2, 3) in the same direction?Find the vector from A(2, 3, 1) to B(5, 1, 4).