lecture16_09 - Announcements 1. HW6 due March 4. 2. Prof....

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1 Announcements 1. HW6 due March 4. 2. Prof. Reitze office hour this week: Friday 3 – 5 pm 3. Midterm1: grades posted in e-learning solutions and grade distribution posted on website if you want to look at your scantron, see Prof. Chan before March 3. 4. Make-up exam: April 21, 7:30 pm covers all material in the course. need to let Prof. Chan and Prof. Reitze know in advance if you need to miss the midterms or final. location TBA Recap: conservation of Momentum • In a collision, the momentum of each object will change. • The total momentum of the system remains constant airplanes need Air Rocket Propulsion • The operation of a rocket depends on the law of conservation of momentum as applied to a system, where the system is the rocket plus its ejected fuel – This is different than propulsion on the earth where two objects exert forces on each other • Road on car • Train on track Rocket Propulsion, 2 • The rocket is accelerated as a result of the thrust of the exhaust gases • This represents the inverse of an inelastic collision – Momentum is conserved – Kinetic Energy is increased (at the expense of the stored energy of the rocket fuel)
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This note was uploaded on 05/17/2011 for the course PHY 2053 taught by Professor Buchler during the Spring '06 term at University of Florida.

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lecture16_09 - Announcements 1. HW6 due March 4. 2. Prof....

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