76 Views

The magnitude of a given vector with ends (4,-4,0) and (-2,-2,0) must be a). 6 b).5 c). 4 d). 8

nafeesahmad0616 4th Jan, 2021

Answer (1)

Subhrajit Mukherjee 4th Jan, 2021

The options you have given all are wrong. The answer will be 2 square root (10).

If we substract from the first end with the last end then we get the vector to be 6i-2j.

The magnitude of it is square root (6^2+(-2)^2)= square root (40)= 2 square root(10)

I hope my answer helps you. All the very best for your future endeavors!

1 Comment

Share

Facebook Copy Link

More

Comments (1)

nafeesahmad0616

4th Jan, 2021

yes you are right it is my mistake their is an option 2 square root 10 except of 8

Reply

Related Questions

3 distinct points A,B&C are given in the 2-dimensional coordinate plane such that the ratio of the distance of anyone of them from the point (1,0)to the distance from the point (-1,0)is equal to 1/3. Then the circumcentre of the triangle ABC is at the point: (a)(5/4,0) (b)(5/2,0) (c)(5/3,0) (d)(0,0)

60 Views

the product of 15 and 7 is divisible by? a. 6 b. 4 c. 5 d. 2

60 Views

vector A has magnitude 5 units

119 Views

Question : Directions: The information given below represents the number codes for the given letters. Select the combination of numbers so that the letters arranged accordingly will form a meaningful word.
R = 1, E = 2, A = 3, C = 4, T = 5, I = 6, V = 7, E = 8
Option 1: 4, 1, 2, 3, 5, 8, 7, 6
Option 2: 4, 1, 2, 3, 5, 6, 7, 8
Option 3: 7, 2, 1, 3, 8, 4, 5, 6
Option 4: 4, 3, 1, 5, 6, 7, 8, 2

26 Views

Question : If A : B = 2 : 3, B : C = 6 : 7, C : D = 14 : 3, then find A : B : C : D.
Option 1: 12 : 12 : 4 : 6
Option 2: 7 : 2 : 10 : 4
Option 3: 8 : 12 : 14 : 3
Option 4: 8 : 5 : 14 : 6

41 Views

Link Copied

The question have been saved in answer later, you can access it from your profile anytime. Access now

Thanks! Your report is submitted, the author will be informed about it

Download Careers360 App

All this at the convenience of your phone

Regular Exam Updates
Best College Recommendations
College & Rank predictors
Detailed Books and Sample Papers
Question and Answers