1 |
|
0
2
3
1
|
2 |
|
0
1
-1
2
|
3 |
|
1
2
3
0
|
4 |
|
0
2
3
1
|
5 |
Which are the following triples can be direction angles of a single vector: |
45°,45°,60°
30°,45°,60°
45°,60°,60°
30°,30°,30°
|
6 |
|
Unit vector
Null vector
Position vector
None of these
|
7 |
|
Position vector of O
Position vector of P
Unit vector
Null vector
|
8 |
A null vector is defined as a vector whose magnitude is: |
1
2
0
None of these
|
9 |
|
Unit vector
Null vector
Free vector
None of these
|
10 |
|
Unit Vector
Null vector
Position vector
None of these
|
11 |
|
0
-1
1
2
|
12 |
|
3
4
5
6
|
13 |
|
28
29
|
14 |
|
[0]
[0, 0]
[0, 0, 0]
None of these
|
15 |
|
|
16 |
|
Position vector
Null vector
Unit vector
None of these
|
17 |
|
x - axis
z - axis
y - axis
None of these
|
18 |
A unit vector is defined as a vector whose magnitude is: |
0
2
1
4
|
19 |
|
2 - 7
2 + 7
|
20 |
The law of parallelogram of addition was used by Aristotle to describe the combined action of : |
One force
Two forces
Three forces
Four forces
|