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An observer having a gun observes a remo...

An observer having a gun observes a remotely controlled balloon. When he first noticed the balloon, it was at an altitude of `800m` and moving vertically upward at a constant velocity of `5m//s`. The horizontal displacement of balloon from the observer is `1600m`. Shells fired from the gun have an initial velocity of `400 m//s` at a fixed angle `theta ( sin theta =3//5 `and `cos theta =4//5 )`. The observer having gun waits `(` for some time after observing the balloon `)` and fires so as to destroy the balloon. Assume `g=10m//s^(2)`. Neglect air resistance.

After noticing the balloon, the time for which observer having gun waits before firing the shell is

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An observer having a gun observes a remotely controlled balloon. When he first noticed the balloon, it was at an altitude of 800m and moving vertically upward at a constant velocity of 5m//s . The horizontal displacement of balloon from the observer is 1600m . Shells fired from the gun have an initial velocity of 400 m//s at a fixed angle theta ( sin theta =3//5 and cos theta =4//5 ) . The observer having gun waits ( for some time after observing the balloon ) and fires so as to destroy the balloon. Assume g=10m//s^(2) . Neglect air resistance. The altitude of the collosion above ground level is

An observer having a gun observes a remotely controlled balloon. When he first noticed the balloon, it was at an altitude of 800m and moving vertically upward at a constant velocity of 5m//s . The horizontal displacement of balloon from the observer is 1600m . Shells fired from the gun have an initial velocity of 400 m//s at a fixed angle theta ( sin theta =3//5 and cos theta =4//5 ) . The observer having gun waits ( for some time after observing the balloon ) and fires so as to destroy the balloon. Assume g=10m//s^(2) . Neglect air resistance. The altitude of the collosion above ground level is

An observer having a gun observes a remotely controlled balloon. When he first noticed the balloon, it was at an altitude of 800m and moving vertically upward at a constant velocity of 5m//s . The horizontal displacement of balloon from the observer is 1600m . Shells fired from the gun have an initial velocity of 400 m//s at a fixed angle theta ( sin theta =3//5 and cos theta =4//5 ) . The observer having gun waits ( for some time after observing the balloon ) and fires so as to destroy the balloon. Assume g=10m//s^(2) . Neglect air resistance. The flight time of the shell before it strikes the balloon is

An observer having a gun observes a remotely controlled balloon. When he first noticed the balloon, it was at an altitude of 800m and moving vertically upward at a constant velocity of 5m//s . The horizontal displacement of balloon from the observer is 1600m . Shells fired from the gun have an initial velocity of 400 m//s at a fixed angle theta ( sin theta =3//5 and cos theta =4//5 ) . The observer having gun waits ( for some time after observing the balloon ) and fires so as to destroy the balloon. Assume g=10m//s^(2) . Neglect air resistance. The flight time of the shell before it strikes the balloon is

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