ESS 3301 Lec 7 - Forces and Fluid Mechanics

# ESS 3301 Lec 7 - Forces and Fluid Mechanics - Announcements...

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Announcements Announcements Range: 26-105 Mean: 77% 16 A 14 B 12 C 11 D 10 F Will be returned at the end of class

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Today’s Plan Today’s Plan No Labs Week of Fall Break (10 th or 12 th ) Exam 2 is Thursday, Oct. 20 Study questions and problem sets are posted
Forces Forces & & Fluid Mechanics Fluid Mechanics ESS 3301-003 Lecture 7 Reading: Problem Set 6 : Contact Forces

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From last time… From last time… Projectile Motion Flight characteristics Calculations
Newton’s Laws Governing Newton’s Laws Governing Linear Motion Linear Motion Law 1 – Law of Inertia If no external forces act on a body then the velocity of that body remains constant A body at rest tends to remain at rest A body in motion tends to remain in motion Law 2 – Law of Acceleration The rate of change of momentum of a body is proportional to the applied force and takes place in the direction which the force acts. F = m·a Law 3 – Law of Action-Reaction To every action there is an equal and opposite reaction Bodies exert equal and opposite forces on each other Action and reaction are immediate. There is no delay between the action and reaction.

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Contact Forces Forces resulting from the interaction of two objects Types of Contact Forces Ground Reaction Force (GRF)
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ESS 3301 Lec 7 - Forces and Fluid Mechanics - Announcements...

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