Physics (AS & A Level) · Oct / Nov 2021 · Paper 12 · Question 17
An object slides with constant velocity across a horizontal sheet of ice. Friction is negligible. A constant horizontal force of 2.1 N is then applied to the object as shown. A short time after applying the force, the object reaches point X at a displacement of 4.0 m from its position when the force was first applied. What is the work done by the force on the object as it travels to point X?
- A4.2 J
- B4.8 J
- C7.3 J
- D8.4 J
As printed in the paper
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Correct answer: C. 7.3 J
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