Activity: Power and efficiency

IB Physics: Activity: Power and efficiency

Topics: collisions n2kLevels: SL/HLNumber of flashcards: 6This activity requires no special apparatus so is easily done at home.Work done per unit timeUnit Js-1 or watt (W)ScalarWhen a car travels at constant velocity the horizontal forces are balanced, the forward force exerted by the engine = the air resistance.Work done = force x displacementShow that in this case:

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