work done against gravity .example
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Work done against gravity - gravitational potential energy. Figure 5 (a) Placing a suitcase on a luggage rack involves doing work against gravity. ... So if an object of mass m is raised through a height h, the work done on the object is equal to mgh, and so this amount of energy is transferred to the object.
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TENSION in string or a bag lifted vertically upward and so many
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