# Projectiles dealing with a bullet

1. Homework Statement
A shell is fired from the ground with an initial speed of 1.60*10^3m/s at an initial angle of 56° to the horizontal.
(a) Neglecting air resistance, find the shell's horizontal range.

(b) Find the amount of time the shell is in motion.

## Homework Equations

vector triangle sin and cosine

## The Attempt at a Solution

all of my answers have been wrong i did the triangle and got hyp 1600 opp side 1326.46 bottom 894.7 from there i dont know where to go please HELP

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gneill
Mentor
You'll need to use the kinematic equations for projectile motion (horizontal and vertical components).

i know that i just can't figure out the horiz and vertical components is
vertical
Vi:1600
thats all i know

Would be better to:

1) Resolve the horizontal by doing Cos (theta) x initial velocity
2) v=u+at to get time in the air
3) Get horizontal component with trig like in 1)
4) distance bullet traveled is s = d / t rearranged to give d = s x t

That's all I can give you without giving you the answer on a plate :L