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We start off by working out all the forces acting on the person and they're parachute, because they are joined together they can be considered as one object. We know the wind resistance and the only other...
A magnetic field
a) The governing equation here is Power = current x voltage or P=IV. using this formula, 1,800 = I x 230 => I=1800/230 = 7.83 A (3sf) b) as watts is equal to joules/seconds, we can find the energy in j...
The force of gravity acts on an object, causing it to accelerate towards the earth. As it’s velocity increases the drag force (friction) exerted on it by the air increases. When the two forces on the obje...
Before we start we should have some idea of the route of our solution. We should observe that force, distance and work have a relation and that mass, velocity and work have a relation. So we should calcul...
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