How to calculate work and power
GeneralClass 12AllAnswered 27 Mar 2026
Answer
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Work calculation: W = F × d × cos(θ)
Power calculation: P = W/t (work per unit time) Or P = F × v (force times velocity)
Example: A 500N force moves an object 10m in 5 seconds:
- Work: W = 500 × 10 = 5,000 J
- Power: P = 5,000/5 = 1,000 W = 1 kW
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