The resultant of two vectors A and B is perpendicular to the vector A and its magnitude is equal to half the magnitude of vector B. The angle between A and B is -

                               

1. 120°

2.  150°

3.  135°

4.  None of these

Concept Questions :-

Resultant of Vectors
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


The three vectors OA, OB and OC have the same magnitude R. Then the sum of these vectors have magnitude -

                       

(A)  R

(B)  2R

(C)  3R

(D)  1+2R

Concept Questions :-

Resultant of Vectors
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


A truck travelling due north with 20m/s turns towards west and travels at the same speed. Then the change in velocity is -

(A)  40 m/s north-west

(B)  202 m/s north-west

(C)  40 m/s south-west

(D)  202 m/s south-west

To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


A particle is moving in a circle of radius r centered at O with constant speed v. The change in velocity moving from A to B AOB=40° is -

(A)  2v cos 40°

(B)  2v sin 40°

(C)  2v cos 20°

(D)  2v sin 20°

Concept Questions :-

Resultant of Vectors
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


If A=B+C and magnitudes of A, B and C are 5, 4 and 3 units respectively, the angle between A and C is -

(A)  sin-1 3/4

(B)  cos-1 4/5

(C)  cos-1 3/5

(D)  π/2

Concept Questions :-

Resultant of Vectors
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


What is the resultant of three coplanar forces: 300 N at 0°400 N at 30° and 400 N at 150°?

1.  500 N

2.  700 N

3.  1100 N

4.  300 N

Concept Questions :-

Resultant of Vectors
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


Two forces, F1 and F2 are acting on a body. One force is doubled of the other force and the resultant is equal to the greater force. Then the angle between the two forces is -

(A)  cos-1 1/2

(B)  cos-1 -1/2

(C)  cos-1 -1/4

(D)  cos-1 1/4

Concept Questions :-

Resultant of Vectors
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


If the angle between vector a and b is an acute angle, then the difference a-b is -

(A)  the main diagonal of the parallelogram

(B)  the minor diagonal of the parallelogram

(C)  any of the above

(D)  none of the above

Concept Questions :-

Resultant of Vectors
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


What displacement must be added to the displacement 25 i^-6 j^ m  to give a displacement of 7.0 m pointing in the x-direction?

(A)  18 i^-6 j^

(B)  32 i^-13 j^

(C)  -18 i^+6 j^ 

(D)  -25 i^+13 j^ 

Concept Questions :-

Resultant of Vectors
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


The value of unit vector in the direction of vector A=5 i^-12 j^, is -

(A)  i^

(B)  j^

(C)  i^+j^/13

(D)  5 i^-12 j^/13

Concept Questions :-

Resultant of Vectors
Please attempt this question first.

Difficulty Level: