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Work, Power And Energy
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05/11/2021 8:23 pm
Topic starter
Each of the following statements describes a force acting. Which force is causing work to be done?
(a) the weight of a book at rest on a table
(b) the pull of a moving railway engine on its coaches
(c) the tension in an elastic band wrapped around a parcel
(d) the push of a person’s feet when standing on the floor
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05/11/2021 8:24 pm
Correct answer is: (b) the pull of a moving railway engine on its coaches