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An aeroplane is flying horizontally with...

An aeroplane is flying horizontally with a velocity of 720 km/h at an altitude of 490 m. When it is just vertically above the target a bomb is dropped from it. How far horizontally it missed the target?

A

1000m

B

2000m

C

100m

D

200m

Text Solution

Verified by Experts

Horizontal componant of vilocity `=720xx(5//8)=200(m//s)`
Let it be the time taken for a freely body from 490.then
`y = (1//2)"gt" ^(2)`
`implies 490 = (1//2) xx 9.8 xx t^(2) `
`implies t=10 ` second
Now horizontal distance
velocity ` xx`time `200xx10=2000m`
Hence the bomb missed the target by `2000`m
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