Answer:
1.0493 m/s
Explanation:
Formula for this problem is
[tex]\frac{Shift F}{F} =\frac{2V}{C}[/tex]
Where,
Shift F = -7 nm = -7 × [tex]10^{-9}[/tex] m
F=0.1 m
C= speed of light = 2.998 × [tex]10^{8}[/tex]
V= Object's (he/she) speed
Putting values;
==> -7 × [tex]10^{-9}[/tex] ÷ 0.1 = 2V ÷ 2.998 × [tex]10^{8}[/tex]
==> -7 × 2.998 × [tex]10^{-1}[/tex] = 2V × 0.1
==> - 2.0986 = 0.2 V
==> V =-1.0493 m/s
