Physics 12-6-16 Ch 5 Review Worksheet 2 Answers

PHYSICS: Did you have a good day today reviewing work, energy, machines, etc.? I wish I could have been there to watch you! Here are the answers to the Review Worksheet 2. Most were worked with g as 9.80 m/s2. Also, I think #19 must be at constant velocity.

3) 1090 J
4) 1350 J
5) 79%
6) 917 W
8) 9.57 kW
12) 420 N
14) 1300 J
18a) -125 N
18b) -2190 N
18c) 0.360
19) 4390 J (assume cart is moving at constant velocity)

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