A projectile is fired horizontally from a gun that is 61.0 m above flat ground, emerging from the gun with a speed...

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A projectile is fired horizontally from a gun that is 61.0 m above flat ground, emerging from the gun with a speed of 250 m/s.

(a) How long does the projectile remain in the air? 
[removed] s 
(b) At what horizontal distance from the firing point does it strike the ground? 
[removed] m 
(c) What is the magnitude of the vertical component of its velocity as it strikes the ground?
    • 13 years ago
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