lecture15_post - Announcements Exam 1: grades posted in...

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Exam 1: grades posted in e-learning. Solutions and distribution posted in website. Mean = 13.2 / 20 You will not get back your scantron. You will get back your exam latest by March 2 nd , after which you can double check that the grading is correct. If you forgot to bring ID during exam, you must see Prof. Chan with your ID or your exam will not be graded. Announcements
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Recap t F v v m p I i f = = = r r r r r ) ( Impulse Momentum
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Recap: conservation of Momentum • In a collision, the momentum of each object will change. • The total momentum of the system remains constant Momentum conservation
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Types of Collisions • Momentum is conserved in any collision • Elastic collisions: K.E. is also conserved. • Inelastic collisions – K.E. is not conserved • Some of the K.E. is converted into other types of energy such as heat, sound, work to permanently deform an object – Perfectly inelastic collisions occur when the objects stick together Not all of the K.E. is necessarily lost
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lecture15_post - Announcements Exam 1: grades posted in...

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