Kinematics-Scalars and Vectors (NEET Physics): Questions 13 - 15 of 15

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Question number: 13

» Kinematics » Scalars and Vectors » Scalar and Vector Products

MCQ▾

Question

the vector P = ai + aj + 3k and Q = ai - 2j - k are perpendicular to each other. The positive value of a is

Choices

Choice (4) Response

a.

4

b.

9

c.

3

d.

13

Question number: 14

» Kinematics » Scalars and Vectors » Scalar and Vector Products

MCQ▾

Question

A particle moves from position 3i + 2j-6k to 14i + 13j + 9k due to a uniform force of (4i + j + 3k) N. If the displacement in metres then work done will be

Choices

Choice (4) Response

a.

250 J

b.

300 J

c.

100 J

d.

200 J

Question number: 15

» Kinematics » Scalars and Vectors » Scalar and Vector Products

MCQ▾

Question

If|AxB|=| A. B| , then angle between A and S will be

Choices

Choice (4) Response

a.

30

b.

60°

c.

45°

d.

None of the above

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