Question

Prelab 12 Static Equilibrium 2

1. What are the two requirements for an extended object to be in equilibrium?

a)

b)

2. Refer to the experiment: Does the tension of the string cause a clockwise or counterclockwise torque about the pivot point? Is it negative or positive?

a)

b)

3. Does the hanging mass cause cw or ccw torque about the pivot? Negative or positive?

a)

b)

4. Where does the weight of the boom act? (the net torque from the boom, or any extended object, can be considered to act as if all its mass were concentrated at the center of mass and the rest is massless. This is the result of a more rigorous integral. On the boom, mark the place torque is acting by a labeled with the force. Boom:

5. The pivot force is in an unknown direction. We can represent these as Fx and Fy and solve for them later with more information. Vector label them below: string Boom

pivot

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Answer 1

① far a system to be in equilibrium . f o fors 12.0] Conquere ② About pivat stretes fingers in dwiecien of point of applialias of force and curl them in direction of force Counter dochwiss Eve @ weight of boom will act at it Centre of mars (mid paint) o horkurise the

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