# NEET Practice Questions - Physics - Mathematical Tools

• Subject:

Physics

• Chapter:

Mathematical Tools

Six vector  have the directions indicated in the figure.Which of the following statements may be true?

(a) $\stackrel{\to }{b}+\stackrel{\to }{c}=\stackrel{\to }{-f}$                        (b) $\stackrel{\to }{d}+\stackrel{\to }{c}=\stackrel{\to }{f}$

(c) $\stackrel{\to }{d}+\stackrel{\to }{e}=\stackrel{\to }{f}$                        (d) $\stackrel{\to }{b}+\stackrel{\to }{e}=\stackrel{\to }{f}$

NEET

In the given figure

(A)  Angle between $\stackrel{\to }{\mathrm{A}}$ and $\stackrel{\to }{\mathrm{B}}$ is $110°$

(B)  Angle between $\stackrel{\to }{\mathrm{C}}$ and $\stackrel{\to }{\mathrm{D}}$ is $60°$

(C)  Angle between $\stackrel{\to }{\mathrm{B}}$ and $\stackrel{\to }{\mathrm{C}}$ is $110°$

(D)  Angle between $\stackrel{\to }{\mathrm{B}}$ and $\stackrel{\to }{\mathrm{C}}$ is $70°$

A force of 6 kg and another of 8 kg can be applied together to produce the effect of a single force of -

(A)  1 N

(B)  11 N

(C)  15 N

(D)  20 N

Which of the sets given below may represent the magnitude of resultant of three vectors adding to zero?

(A)  2, 4, 8

(B)  4, 8, 16

(C)  1, 2, 1

(D)  0.5, 1, 2

A blind person after walking 10 steps in one direction, each of length 80 cm, turns randomly to the left or to the right by $90°.$ After walking a total of 40 steps the maximum possible displacement of the person from his starting position could be -

(A)

(B)

(C)

(D)

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 -

(A)  $120°$

(B)  $150°$

(C)  $135°$

(D)  None of these