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IGCSE Science - Physics
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Question 4 of 55
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Nuclear power stations transfer uſeful energy to other energy stores. How is this useful energy carried from the power
stations?
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Ithink it is letter b, i may be wrong but i think that is the answer

W= fd
where f is an applied force and d is the distance over which it is applied. when a parachuting skydiver is at constant velocity, he is experiencing "terminal velocity", the point at which his acceleration down is canceled out by air resistance. that means that the resisting force of the air is equal to his weight, but in the opposite direction. with this, we can solve for the work done by the force.
w = fd
w = (92.0)(9.81 m/s^2) (325)
w= 2.93 x 10^5 j
the value for work in this case is positive because it is pushing up on the skydiver, who has a downward force of gravity.
therefore the answer is 2.93 x 10^5 j

The correct answer should be b let me know if i’m wrong