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

A spring is compressed a distance of 1m and a 2 kg rock is shot straight up with the spring. The rock attains a maximum height of 500m. What is the force constant k of the spring?

Use g=10m/s^2

2. Relevant equations

P.E.= mgh

P.E. elastic= (1/2)(k)(x^2)

3. The attempt at a solution

P.E.= mgh

P.E.=(2000g)(10m/s^2)(500m)

P.E.= 10000000 newtons

P.E. elastic= (1/2)(k)(x^2)

k= P.E elastic/ (1/2)(x^2)

k= 10000000/ (1/2)(1)

k=2000000 newtons ?

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

Dismiss Notice

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: Potential Energy

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