Work and Power. Presented by: Ms. Quarles. Did you do work?.
Work and Power
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After a heavy snow storm, a neighbor’s car gets stuck in the snow. You shovel some snow away from the car and try to push it. Although you try to push as hard as you can, the car just won’t budge. This sure is hard work! You exerted a lot of force, but the car never moved. Was work done on the car?
Your common sense may suggest that lifting a heavier object, which demands a greater force, requires more work than lifting a lighter object. Also, moving an object a greater distance requires more work than moving an object a shorter distance. Both of these are true.