The magnitudes of vectors are 3, 4 and 5 units respectively. If , the angle between is
π/2
cos-1 (0.6)
tan-1(7/5)
π/4
The vectors are such that then angle between the two vectors will be
45o
60o
75o
90o
3
4
9
13
Two quantities A and B have different dimensions. Which mathematical operation given below is physically meaningful?
A/B
A + B
A - B
None
0o
180o
Given that and makes angle α and β with and respectively, then which of the following is correct
α cannot be less than β
α < β if P < Q
α < β if P > Q
α < β if P = Q
Find the torque of a force acting at the point .
Minimum number of unequal vectors which can give zero resultant are:
Two
Three
Four
More than four
The angle between is θ. The value of the triple product is
A2B
Zero
A2B sin θ
A2B cos θ
(A2 + B2 + AB)1/2
(A2 + B2 + AB/√3)1/2
(A2 + B2 + √3 AB) 1/2
