Equilibrium of a Rigid Body Prelab Quiz Refer to : http://www.physics.qc.edu/fil

ID: 1648479 • Letter: E

Question

Equilibrium of a Rigid Body Prelab Quiz

Refer to : http://www.physics.qc.edu/files/535

1. Where do you expect the center of gravity of the ruler to be? (Refer to http://www.physics.qc.edu/files/535 for references)

a. Close to but not exactly the geometric center, 50 cm.

b. Around the 90 cm mark

c. Around the 20 cm mark

d. Exactly at the geometric center, 50 cm.

2. For procedure 2, the "total mass" on the left/right side is (Refer to http://www.physics.qc.edu/files/535 for references)

a. the sum of: the total mass placed on the holder, the mass of the holder.

b. the total mass placed on the holder.

c. the sum of: the total mass placed on the holder, the mass of the holder, the mass of the mass support, the mass of the ruler.

d. the sum of: the total mass placed on the holder, the mass of the holder, the mass of the mass support.

3. For procedure 4, the "total mass" on the right side is (Refer to http://www.physics.qc.edu/files/535 for references)

a. the sum of: the total mass placed on the holder, the mass of the holder.

b. the total mass placed on the holder.

c. the sum of: the total mass placed on the holder, the mass of the holder, the mass of the mass support.

d. the unknown mass which is to be determined

1) option a,as there are good chances that ruler is not exactly symmetrical.

2] option d is correct, found in second point of procedure 2

3] option a is correct, from third point of procedure 4

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