Friday, January 16, 2015

Combining Linear and Rotational Dynamics

Today we walked through a problem that required us to combine linear and rotational dynamics. Typically in these types of problems, the three equations you need are:

Net force = (mass)(linear acceleration)

Net torque = (moment of inertia)(angular acceleration)

linear acceleration = (radius)(angular acceleration)

But you need to be very careful to make sure the signs of the linear and angular accelerations match up.

We used the whiteboard, not the overhead, so I will post pictures of the completed problem when I can.
Which is 1:50 PM
The rest of the time you started working on your homework so I could help you with these new kinds of problems.

Homework: Ch.8 (p. 269) #35, 40, 87

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