7), we get
fu
v
u
f
=
−
For convex mirror, since R = 2 m, f = 1 m Then
for u = –39 m, 
( 39)
1
39 m
39
1
40
v
−
×
=
=
−
−
Since the jogger moves at a constant speed of 5 m s–1, after 1 s the
position of the image v (for u = –39 + 5 = –34) is (34/35 )m EXAMPLE 9 2
Rationalised 2023-24
Physics
228
 EXAMPLE 9