A student of mass 40kg takes 10sec to run up a flight of 50 steps. If each step is 15cm high, calculate the potential energy of the student at the maximum height.
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Answer:
ptential energy is mgh.
m=40Kg
g=9.8.
h=50(no. of steps)×.15m(hight of each steps).
potentially energy= 40×9.8×7.5
=2940J
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