(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A projectile is fired with an initial speed of 100 ft/s and angle of elevation Pi/6 (30 degrees).

Find:

A) the range of the projectile (along the x-axis)

B) the maximum height reached

C) the speed at impact

2. Relevant equations

Vf^2 = Vi^2 +2a*s

Vf = Vi + a*t

Sf = Si + Vo*t + (1/2)a*t^2

(where S is any coordinate axis)

3. The attempt at a solution

I have the answers from the answer key (this is a review), and I can't seem to get any of it right.

I found s (max height) (not S), to be 127.551 seconds.

I found t = 10.2 (from launch to landing)

I found range = 883.346.

I know this isn't a hard problem, but for some reason I cannot solve it.

The answers are:

A) 625*sqrt(3)/4 ft

B) 625/16 ft

C) 100 ft/s

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Finding Range, Max Height and Speed of Projectile

**Physics Forums | Science Articles, Homework Help, Discussion**