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1. What is work done in holding a 15kg suitcase while waiting for a bus for 15 minutes?
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1. What is work done in holding a 15kg suitcase while waiting for a bus for 15 minutes?

User Pbasdf
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The man is holding the suitcase at the same height above the surface of earth. So the gravitation potential energy remains the same.

work done is force * displacement = weight * 0 = 0
User Ben Steward
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