Rain is falling vertically downwards with a speed of 4 km h^(-1) . A girl moves on a straight road with a velocity of 3 km h^(-1) . The apparent velocity of rain with respect to the girl is :

Rain is falling vertically downwards with a speed of 4 km h^(-1) . A g

1.	Rain is falling vertically downwards with a speed of 4 km h^(-1) . A girl moves on a straight road with a velocity of 3 km h^(-1) . The apparent velocity of rain with respect to the girl is :
Answer» 3 km `H^(-1)` 4 km `h^(-1)` 5 km `h^(-1)` 7 km `h^(-1)` Solution :`vec(V_(rg))=vec(V_(r))-vec(V_(g))=vec(V_(r)) + (-vec(V_(g)))` `:.\|vec(V_(rg))=sqrt(V_(r)^(2) + V_(g)^(2))` `=sqrt(16 +9)` 5km/h

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Rain is falling vertically downwards with a speed of 4 km h^(-1) . A girl moves on a straight road with a velocity of 3 km h^(-1) . The apparent velocity of rain with respect to the girl is :

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