Q)
(chatquestion)...(3) Vo.s
(4) O
(3)
The angles which a vector i+}+ Z
2.
Y and Z
with
makes
X,
respectively are
60°, 60°, 60°
(3) 60°, 60°, 45°
axes
9.
Fol
par
(2) 45°, 45°, 45°
(4) 45°, 45°, 60°
The value of a unit vector in the
or
3.
direction of vector A= 5i-12j, is
th
R5-12
(1) ?
(3) (+/13
Which of the following is independent
of the choice of co-ordinate system
(2)
(1
(3
(4) (si-12)/13
10. TE
re
(1) P+Q+R
be
(2) (P,+Q, +R,i
(3) Pi+0j+Rk
(4) None of these
A car travels 6 km towards north at an
5.
angle of 45° to the east and then
travels distance of 4 km towards north
at an angle of 135° to the east. How
far is the point from the starting point.
What angle does the straight line
joining its initial and final position
makes with the east
to
11.
CI
cl
(1) 50 km and tan (5)
(2) 10 km and tan (5)
(3) 52 km and tan (5)
(4) 52 km and tan (5)
Given that A+B+C= 0 out of three
vectors two are equal in magnitude
and the magnitude of third vector is
2 times that of either of the two
having equal magnitude. Then the
angles between vectors are given by
12.
6.
(1) 30°, 60°, 90°
(3) 45°, 60°, 90° (4) 90°, 135°, 135°
Two forces F =1N and F =2N act along
the lines x = O'and y = 0 respectively.
Then the resultant of forces would be
(2) 45°, 45°, 90°
7.
13.
(2) i+
(1) i+2)
(4) 2i +j
(3) 31+2)
At what angle must the two forces (x+
y) and (x - y) act so that the resultant
8.
3=2
may be Va +y?)
...
