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Chapter5_5-7_FA05

# Chapter5_5-7_FA05 - Newton's Law(s and Order Chapter...

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Newton’s Law(s) and Order Chapter 5.6-5.7 Important Vocabulary: Normal Force Contact Force “It’s not just an equation, it’s the Law!”

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Which string breaks first?
0 / 100 Cross-Tab Label Getting hammered? 1. Left side picture is better. 2. Right side picture is better. 3. Neither one has an advantage, the forces are the same. Which picture describes the better approach for tightening a loose hammer-head?

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M=950kg. dT=1.20s. V1=16.0m/s V2=9.5m/s What is the average Force? How far did the car travel? F=Ma The mass is given, so need to find a. a is equal to change in velocity over time (definition). Once have “a”, get distance from master equation. m aT T V x N s m kg Ma F s m T V V a 3 . 15 ) 2 . 1 )( 42 . 5 ( 2 1 20 . 1 * 0 . 16 2 1 5150 ) / 42 . 5 )( 950 ( / 42 . 5 2 2 1 2 2 2 . 1 0 . 16 5 . 9 1 2 = - = + = - = - = = - = = - = - M=950kg, V1, V2 and T=1.2s are given. What is the average Force?
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Chapter5_5-7_FA05 - Newton's Law(s and Order Chapter...

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