transfer cart with lifting function
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Pingry School
Problem 2 800 – 700 — 600 500 400 300 — 200 — 100 – 10 15 1993-B No. 1 Time (s) 20 l. A student whose normal weight is 500 newtons s nds on a scale in an elevator and records the scale reading as a function of time. The data are shown in the graph above. At
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