First, in class we discussed on homework. We were given white boards. Each table was assigned a problem from the homework. Here is what we discussed in class.
The text in Red is the work done to the system
Group A- Someone Lifts Up a book- 10j+20j=30j
Group B-Pushing A Lawn Mower- 0j+5j=5j
Group C-A person Goes Bungy Jumping- 5j+20j= 25j
Group D-A car speeding down then going up a small ramp. Then it flies in the air- 40j+20j=60j
Finley-A person bouncing on a trampoline- 20j=20j No work
Group G- A rock climber starts falling down and his hands burn on the rope. 20j=20j No work
That took up all of class. A good link that I found to help. Use it if you are unclear about something
I hope the Blog helped.
ZK
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