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elocity at a general point P(x, y) for a...

elocity at a general point P(x, y) for a horizontal projectile motion is given by
`v=sqrt((v_("x")^(2)+v_("y")"^(2))),tan alpha=(v_(y))/(v_(x))`
`alpha`is angle made by v with horizontal in clockwise direction Trajectory equation for a horizontal projectile motion is given by `x=v_(x)t=ut`
y=-`(1//2)"gt"^(2)`
eliminating t, we get `y=-(1//2)(gx^(2))/(u^(2)`
5An aeroplane is in a level flying at an speed of 144 km//hr at an altitude of 1000 m. How far horizontally from a given target should a bomb be released from it to hit the target ?

A

`571.43`

B

`671.43`

C

`471. 34`

D

`371.34`

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