In which case is no work being done?
Correct answer: C. A carton sliding on a frictionless horizontal floor
- A. Pulling a rubber band
- B. Climbing a ladder
- C. A carton sliding on a frictionless horizontal floor
- D. A phone thrown down from the balcony
Explanation
Since there is no frictional force, and the carton is experiencing no other net force, no work can be done
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About Scientific Reasoning
Scientific reasoning evaluates hypotheses through observations, variables, controls, measurements and experimental results. Questions involve identifying independent and dependent variables, recognising a fair test, interpreting tables or graphs, distinguishing evidence from opinion, and deciding whether data supports, rejects or leaves a hypothesis unresolved.
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