REFERENCE FRAME
Kinenatics
Reference frame is a set of
coordinate axis with respect to
which we measure the position of any particle.
MOTION
A particle is said to have moved in a certain reference frame
if its pesitiom vector chamges.
DISPLACEMENT (3)
The change in position vector is called the displacement.
Mathem atically,
B=bf-r (rs= final position)
5= Δ (li= initial position)
(A = Change)
) A final coordinate =
of(=22-15+k). (3, 4,5) amd it has undergone
Find its initial coordinates. a displacement
s = (3+4+5) - (22-15+)
७ = i + 19 +42
The minute hand
of a lock tower is /2m. long an
d time
18 120 clock. Take y-axis along 120clock position and fin
5 of its tip in d
(i) lo min.
(ii) 20 min.
(iii) 40min. (0,12)
()
(3,0)
Smin
u = Sim 60£ +1
2
Cos 603 t.
2
5= 3
一
17 17
,
Kinenatics
Reference frame is a set of
coordinate axis with respect to
which we measure the position of any particle.
MOTION
A particle is said to have moved in a certain reference frame
if its pesitiom vector chamges.
DISPLACEMENT (3)
The change in position vector is called the displacement.
Mathem atically,
B=bf-r (rs= final position)
5= Δ (li= initial position)
(A = Change)
) A final coordinate =
of(=22-15+k). (3, 4,5) amd it has undergone
Find its initial coordinates. a displacement
s = (3+4+5) - (22-15+)
७ = i + 19 +42
The minute hand
of a lock tower is /2m. long an
d time
18 120 clock. Take y-axis along 120clock position and fin
5 of its tip in d
(i) lo min.
(ii) 20 min.
(iii) 40min. (0,12)
()
(3,0)
Smin
u = Sim 60£ +1
2
Cos 603 t.
2
5= 3
一
17 17
,
