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  4. A fighter plane, flying horizontally with a speed 360 kmph at an altitude of 500 m drops a bomb for a target straight ahead of it on the ground. The bomb .should be dropped at what approximate distance ahead of the target? Assume that acceleration due to gravity ( g ) is 10 ms -2. Also neglect air drag

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Q. A fighter plane, flying horizontally with a speed $360 \,kmph$ at an altitude of $500 \,m$ drops a bomb for a target straight ahead of it on the ground. The bomb .should be dropped at what approximate distance ahead of the target? Assume that acceleration due to gravity $( g )$ is $10\, ms ^{-2}$. Also neglect air drag

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Solution:

$v =360 \,km / h =100 \,m / s .$
$h =500\, m$
$R=u \sqrt{\frac{2 h}{g}}=100 \times \sqrt{\frac{2 \times 500}{10}}=1000\, m$