If x/2 < 0 < x, then θ lies in ___ quadrant.
a) I
b) II
c) III
d) IV
The point (-5,9) lies in which quadrant?
a) I
b) II
c) III
d) IV
A force F = 4i – 2j acts through a displacement S = 3i – j then work done is:
a) 14N
b) 12N
c) 1N
d) 0N
Explanation: The work W done on an object by a constant force is defined as
W = F·S. It is equal to the magnitude of the force, multiplied by the distance the object moves in the direction of the force.
W = F·S : Putting values : F = 4i – 2j and S = 3i – j : Since : i2= 1 and j2
W = 12 + 2 = 14 Answer
In general equation of line y = mx + c, slope is:
a) y
b) m
c) x
d) c
Explanation: y = mx + c : Here x and y are variables, c is constant and m is slope.
Find the mean proportional of 45 and 4:
a) 6√5
b) 3√5
c) 30
d) 45
