Work and Power

Some useful equations: Work = F d Power = work / time PE = mgh KE = (1/2) mv2. 1) Which requires more work—lifting a 10-kg sack a vertical distance of 2 m, or lifting a 5-kg sack a vertical distance of 4 m? Which sack gains more potential energy? 2) If one lifts each sack in problem 2 (not at the same time) a distance of 1 m in 5 seconds how ... ................
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