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## ksaimouli 2 years ago http://www.chegg.com/homework-help/questions-and-answers/particle-p-mass-2kg-position-vector-r-r-3m-velocity-v-v-4m-s-shown-force-f-f-2n-acting-par-q2803206

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1. ksaimouli

@Outkast3r09 @Edutopia

2. Outkast3r09

well torque is easy

3. Outkast3r09

$it's the|dw:1359765105446:dw| we know the lever arm however we need to make the force perpendicular to the arm i think if i remember right 4. Outkast3r09 we need to find the perp force of that force on it which is a component of that force 5. Outkast3r09 so if you look t's the sin of that angle 6. Outkast3r09 so now you have \[\tau=fRsin(\theta)=2*3*sin(30)$

7. Outkast3r09

you're given velocity so you can find angular velocity

8. Outkast3r09

now you need to find the moment of inertia for hte object... you can perhaps find this using torque equation

9. Outkast3r09

$\tau=fR=I\alpha$

10. ksaimouli

@Outkast3r09 i go the torque i need the (a) part

11. ksaimouli

angular momentum

12. Outkast3r09

you need to find hte moment of inertia of this object somehow

13. ksaimouli

I can also use r x mv right

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