VECTOR

Question 1

A directed line segment.

Answer 1

vector

Question 2

What angle do we take in vector.?

Answer 2

Tail to Tail

Question 3

Triangle Law ( 2 vectors P and Q represent the two sides of a triangle then the third side taken in opposite order will represent the……..

Answer 3

Vector Sum or Resultant of these vectors.

Question 4

//gm law( Vector P and Q represent the two adjacent sides of a //gm then the diagonal of the //gm …..

Answer 4

Emerging from the tail of two vectors will represent the vector sum.

Question 5

What is direction in vector?

Answer 5

It means how much angle it(Resultant) makes with P or Q vector depending upon our need.

Question 6

tan alpha? alpha is the angle btw. Resultant and Vector along x-axis.

Answer 6

tan alpha= Q Sin Theta/ P+Q Cos theta.

Question 7

tan alpha shortcut?

Answer 7

j.component/ i component.

Question 8

For addition of two vectors make it in

Answer 8

i cap and j cap form.

Question 9

If two vectors have equal magnitude then resultant will be

Answer 9

R= 2 A cos theta/2 Here, A is the magnitude of two vectors and theta is the angle btw. two vectors.

Question 10

When two vectors have equal magnitude then alpha(angle)will be

Answer 10

alpha=theta/2 theta is the angle between two vectors.

Question 11

-ve of a vector.

Answer 11

It is again a vector with same magnitude but direction is just opposite of it..

Question 12

Splitting of a vector into its components is called

Answer 12

Resolution.

Question 13

When a vector is resolved in such a manner that all of its components are mutually perpendicular then these components are called

Answer 13

Rectangular components of a given vector.