Power and efficiency

AimstextConsiderationsI use two different examples to introduce power, the power lifter and the powerful car. Anyone can lift 100 bags of sugar from the floor to a table but only a powerful person could do it in 5s. This could be done either by lifting all of them in one go or by lifting each one very quickly (impossible). The powerful car can accelerate fast, increasing KE in a short time and has a high top speed....


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