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1/19/11 Day 8. TOPIC: Conservation of Momentum Lab OBJECTIVE: I will calculate momentum before and after an elastic collision STARTER: Copy the following Conservation of Momentum equation. Momentum before = Momentum after m 1 v 1 + m 2 v 2 = m 1 v 1 + m 2 v 2. Table I : Collision Data.
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1/19/11 Day 8 TOPIC: Conservation of Momentum Lab OBJECTIVE: I will calculate momentum before and after an elastic collision STARTER: Copy the following Conservation of Momentum equation. Momentum before = Momentum after m1v1+ m2v2 = m1v1 + m2v2
Table I : Collision Data COPY THE FOLLOWING DATA ON TO THE BOTTOM 3 LINES ON YOUR LAB REPORT
Ben bought 8 notebooks for $24.50. Some of the notebooks were $2.50 each, and the others were $3.25 each. If x represents the number of least expensive notebooks, which equation can be used to find the number of least expensive notebooks purchased? • $5.75(8 − x) = $24.50 • B. $2.50(x − 8) + $3.25x = $24.50 • C. $2.50x + $3.25(8 − x) = $24.50 • D. $2.50x + $3.25(x − 8) = $24.50
Solve Looking: # of least expensive books Given: 8 notebooks 24.50 total cost 2.50 Least expensive 3.25 Most expensive X=least expensive Relationship/solve: Total cost = (#of least exp.)2.5 + (# of most exp.)3.25 (24.50) = (x)2.5 + (8-x)3.25