If a unit vector is rotated through an angle of 45° anticlockwise, then the new vector will be:
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are two vectors given by and . The component of parallel to is:
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If a vector is inclined at angles, with x, y, and z-axis respectively, then the value of is equal to
1. 0
2. 1
3. 2
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If is the unit vector in the direction , then:
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Which of the following sets of forces cannot give zero resultant?
(1) 3 N, 4 N, 5 N
(2) 9 N, 8 N, 7 N
(3) 16 N, 2 N, 17 N
(4) 30 N, 5 N, 24 N
If two force vectors of the same magnitude are arranged in the following manner, the magnitude of resultant is maximum for?
(1) (I)
(2) (II)
(3) Both (II) & (III)
(4) Both (I) & (II)
The minimum number of non-coplanar vectors whose vector sum can be zero is:
(1) 2
(2) 3
(3) 4
(4) 5
The resultant vector of makes angle with and with .Then-
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The figure shows ABCDEF as a regular hexagon. What is the value of ?
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