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Two locomotives approach each other on parallel tracks. Each has a speed of v = 80 km/h with respect to the ground. If they are initially d = 9.0 km apart, how long will it be before they reach each other?(min)

Respuesta :

Answer:

Explanation:

Given

speed of locomotive [tex]v=80\ km/h[/tex]

distance [tex]d=9\ km[/tex]

Relative velocity of two locomotive [tex]v_r=80-(-80)=160\ km/h[/tex]

Time taken[tex]=\frac{distance}{speed}[/tex]

[tex]t=\frac{9}{160} \hr[/tex]

[tex]t=\frac{9}{160}\times 60\ min[/tex]

[tex]t=3.375\ min[/tex]

     

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