Posted by **Alice** on Monday, February 2, 2009 at 9:23am.

A particle rotates in a circular orbit about a point located 30cm away, with angular speed 2 rad s^-1. If the angular momentum is 0.2 Js, determine the mass of the particle.

I used L=mr^2 omega and got 1.11kg

A constant torque of 0.2Nm accelerates the particle for 5s. Determine the final angular momentum od the particle. I'm not sure how to do this or which equation to use.

## Answer This Question

## Related Questions

- physics - A PARTICLE OF MASS M IS SHOT WITH an initial velocity v making an ...
- Physics - A bicycle starts at the origin of a circular track that has a ...
- Physics - 3. A particle of mass 0.5 kg has velocity 2 m/s. It is moving at ...
- College Physics - A uniform horizontal rod of mass M and length l rotates with ...
- physics - A particle of mass 0.350 kg is attached to the 100-cm mark of a meter ...
- Dyanamics - A particle of mass m moves in a x-y plane. the co-ordinates of the ...
- physics - a particle of mass m moves in a x-y plane. The coordinates of the ...
- physics - A small ball with a mass of 0.05 kg moves along a circular orbit with ...
- Physics - A particle of mass m moves in a x-y plane. the coordinates of the ...
- physics! please help!! - A particle rotates counterclockwise in a circle of ...

More Related Questions