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A 5-step lesson. Step 1: 'Power is the RATE of doing work - how quickly energy is transferred. P = W/t = Energy/time.' Units: Watts (W). 1W = 1J/s. Step 2: 'Since W = Fd, Power = Fd/t = Fv (force × velocity)'. This is useful for constant-speed situations: A car engine exerting 500N at 20 m/s has pow

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