You swing a can on a string horizontally in a circle above your head at a constant speed. Is the work you do on the can positive, negative, or zero? Why? (Hint: Can you find work in another way than F×d?)
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You swing a can on a string horizontally in a circle above your head at a constant speed. Is the work you do on the can positive, negative, or zero? Why? (Hint: Can you find work in another way than F×d?)
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