Matthew MarckPhys121 0206HWL10SummaryThis week in lecture we had our exam, went over our exam, and began to discuss rotational energy with the ild, and pascals principle.Rotational energy is based on the distribution of mass according to the shape of an object while rotating. For example, a ring with equal mass to a solid disk will have a higher rotational energy; more concentration of mass moving at a faster velocity because it is further away from the center of rotation. With higher rotational energy, an object will give up more of its potential to that rotation causing it to accelerate slower. Thus the ring will accelerate slower than the disk of equal mass. Pascals principle is related to areza and forces, how a force on a small area is proportional to a force on a larger area. The example in class when the student broke the wood with the pump tool was an example of turning a smaller force into a larger
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