Answer:
Dina's velocity relative to the ground is 7.5 m/s.
Explanation:
Given that,
Velocity of Dina v = 0.5 m/s
Velocity of train v' = 8.0 m/s
We need to calculate the Dina's relative velocity
Using formula of relative velocity
Relative velocity=velocity of train - velocity of Dina
[tex]v_{r}=v'-v[/tex]
Where, v' = Velocity of train
v = Velocity of Dina
Put the value into the formula
[tex]v_{r}=8.0-0.5[/tex]
[tex]v_{r}=7.5\ m/s[/tex]
Hence, Dina's velocity relative to the ground is 7.5 m/s.
