A block of mass 0.25 kg is connected to a spring with a spring constant (k) of 35 N/m. It is oscillating on a frictionless horizontal surface. It's speed as it passes through equilibrium is 1.04 m/s. What is the total energy of the system?(adsbygoogle = window.adsbygoogle || []).push({});

I know that E=0.5(k)(A)^2. I just can't figure out the Amplitude. I know I can do it. I just don't know what kind of equation to use to get the amplitude. I have tried using x=A cos (wt) but that wasn't right. I have also tried vmax=A(k/m), that wasn't right either. I'm confused.

**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: Total Energy of a System

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