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## Homework Statement

A projectile is fired horizontally from a gun that is 55.0 m above flat ground, emerging from the gun with a speed of 350 m/s.

a) How long does the projectile remain in the air?

b) At what horizontal distance from the firing point does it strike the ground?

c) What is the y-component of the velocity as it strikes the ground?

d) What is the magnitude of its speed as it strikes the ground?

e) At what angle does the projectile strike the ground?

## Homework Equations

V1x=V1cosθ

V2x=V1cosθ

x=(V1cosθ)t

V1y=V1sinθ

V2y=(V1ysinθ)t-gt

y=(V1sinθ)t-0.5gt^2

## The Attempt at a Solution

So I attempted each one and just want feed back on my answers.

a)t=3.4s

b)x=1190m

c)-33.32m/s

d)351.6m/s

e)355 degrees