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If you wanted to demonstrate a first class lever system to your peers which Childhood toy would you use as a basis for your demonstration and which body motion would you use as an example?
A. A yo-yo and handshake
B. A see-saw , chin raise
C. A swing set , a leg kick
D. A slide, a squat
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Answers: 3
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If you wanted to demonstrate a first class lever system to your peers which Childhood toy would you...
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