- #1

tatertot560

- 11

- 0

## Homework Statement

A 200 kg weather rocket is loaded with 100 kg of fuel and fired straight up. It accelerates upward at 33 m/s^2 for 34 s, then runs out of fuel. Ignroe any air resistance effects.

A) what is the rocket's maximum altitude?

B) how long is the rocket in the air?

## Homework Equations

i tried using vf=vi + at for part a and then i think i use the equation d=vi*t+1/2*a*t^2 to find the altitude.

## The Attempt at a Solution

for vf, i got 1122 m/s, but I'm not sure if this is right or if I'm using the right equations. if that is correct, i plug it into the 2nd equation to get my second answer, right?

if anyone can help, i would really appreciate it :)