9. Two weights are placed on opposite sides of a seesaw which has a pivot in the middle (similar to figure 8-43 in the text). The heavy weight (21.0 kg) is placed 1.2m to the left of the pivot, and the lighter weight (15.0 kg) is placed 1.9 m to the right of the pivot. What is the net torque due to the weights at the moment they are placed on the seesaw? Remember, that torques which rotate an object counterclockwise are positive, and torques which rotate an object clockwise are negative.

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Chapter11: Angular Momentum
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8-5 and 8-6
9. Two weights are placed on opposite sides of a seesaw which has a pivot in the middle (similar to
figure 8-43 in the text). The heavy weight (21.0 kg) is placed 1.2m to the left of the pivot, and
the lighter weight (15.0 kg) is placed 1.9 m to the right of the pivot. What is the net torque due
to the weights at the moment they are placed on the seesaw? Remember, that torques which
rotate an object counterclockwise are positive, and torques which rotate an object clockwise
are negative.
Transcribed Image Text:8-5 and 8-6 9. Two weights are placed on opposite sides of a seesaw which has a pivot in the middle (similar to figure 8-43 in the text). The heavy weight (21.0 kg) is placed 1.2m to the left of the pivot, and the lighter weight (15.0 kg) is placed 1.9 m to the right of the pivot. What is the net torque due to the weights at the moment they are placed on the seesaw? Remember, that torques which rotate an object counterclockwise are positive, and torques which rotate an object clockwise are negative.
10. What is the angular acceleration of the weights (in problem 9) due to the net torque? You will
need to find the moment of inertia of the two weights.
Transcribed Image Text:10. What is the angular acceleration of the weights (in problem 9) due to the net torque? You will need to find the moment of inertia of the two weights.
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