1. A solid bar of length L = 0.5m and with W = 0.1m weighs 2kg. It also has two constant-thrust rockets attached on either end. Each rocket is small enough to be considered a point mass of 0.25kg. If the bar is initially at rest and in two seconds after the rockets are fired it achieves a rotation rate of 1000rpm, determine the thrust of each rocket.(adsbygoogle = window.adsbygoogle || []).push({});

2. Relevant equations

torque = I * angular acceleration

I = (1/12)*(L^2+W^2)*M

3. I found I, angular momentum, to be 0.0542. I am not sure what to do from there.

**Physics Forums - The Fusion of Science and Community**

# Rotation and Angular Momentum: Solving for thrust of a rocket

Have something to add?

- Similar discussions for: Rotation and Angular Momentum: Solving for thrust of a rocket

Loading...

**Physics Forums - The Fusion of Science and Community**