PHYSICS

Asked by AnisaUsing the gravitational potential energy formula E = mgh we can calculate that 1 step will take 0.3 * 650 = 195 Joules, where 650 = mg as weight is just mass multiplied by the acceleration due to gravity. So 40 steps is just 40 * 195 = 7800J Power is the rate of energy, so we have 7800/60 = 130 Watts as there are 60 seconds in a minute.

Physics

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What's the difference between the new and old IGCSE Edexcel Physics specification?

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