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Chapter 2 - Vectors and Equilibrium - 5
1.
The resultant vector is changed it order of vectors is changed.
a) True
b) False
2.
The parallel vectors of the same magnitude are equal to each other.
a) False
b) True
3.
If a vector is lying along y-axis than its x-component is equal to zero.
a) True
b) False
4.
The magnitude of the resultant of two vectors can be greater than the sum of the magnitudes of individual vectors.
a) False
b) True
5.
The dot product of two non zero vectors which are at right angle to each after is always equal to zero.
a) False
b) True
6.
I.j = j.k = k.i = 0
a) False
b) True
7.
If the body is at rest or rotating with uniform angular velocity the angular acceleration will be zero.
a) True
b) False
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