Recent content by premedonna89

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    Formula for total KE of disk rolling across table 8 m/s?

    ugh nevermind...its K trans + K rot = 160 + 80 = 240
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    Formula for total KE of disk rolling across table 8 m/s?

    Homework Statement A solid disk (mass = 5 kg, R=0.9 m) is rolling across a table with a translational speed of 8 m/s. What is the total KE of the disk? Homework Equations K = the sum of (1/2 x mass initial x velocity initial^2) (in my textbook, there are other derivations of this formula...
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    Rotational Inertia Seesaw Picot

    CORRECTION ON TITLE: it should be "Rotational Inertia Seesaw Pivot"Homework Statement Alice (20kg) and Bonnie (25kg) sit on seesaw (10m long, 12 kg mass). Pivot of seesaw is in the middle. In order for the seesaw to stay level we determined (in the previous step of the multi-part problem)...
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    Fish Pulling on Reel: Angular Accel. & Line Pulled

    ah! Torque = 1.8 x 0.064 *blush* thank you!
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    Fish Pulling on Reel: Angular Accel. & Line Pulled

    Homework Statement A fish takes the bait and pulls on the line with a force of 1.8 N. The fishing reel, which rotates counterclockwise without friction, is a solid cylinder of radius 0.064 m and mass 0.80 kg. (a) What is the angular acceleration vector of the fishing reel? rad/s2...