# MrFlint.com

The online companion to your favorite class.

- Newton's First Law: The Law of Inertia
- Interia demonstrations
- Mass as a measurement of the amount of inertia
- Newton's Second Law: F=ma

- Newton's Second Law examples.
- Push on a 2.5 kg object with a force of 3.0 N. What is the displacement after 5.0 s? What if there is 1.2 N of friction force? What are all the forces acting on the objects?
- Relate net forces to accelerations as connections between dynamics and kinematics

- P. 74; 9–10 and 12–14 due
- Go over problems together in class.

- P. 73; 1, 5–8 due
- Velocity vector addition in 2–D.
- Application of vector addition methods in 2–D.
- A bird is flying with a velocity of 25 m/s north. There is a 15 mph wind from the north. Then solve with south wind, west wind, and wind 12° N of E.

- Intro. to Force Lab
- Work on Force Lab

- Force Lab

- Force Lab

- Return/review problems from last week
- Go over #16-20 in detail

- Friction acting at angles on objects
- Forces on inclined planes
- Friction on inlclined planes

- P. 112, 35-38 due
- Go over problems together

- P. 112, 35-38 due
- Go over problems together

- Some more friction on inclined plane problems
- Consider the motion of a soccer ball kicked at a 25° angle and an initial speed of 25 m/s

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- Chapter 4 Test

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