Answer:
Power required, P = 175 watts
Explanation:
It is given that,
Weight of a student, F = mg = 200 N
The student climbs a flight of stairs of height, h = 7 m
Time taken, t = 8 s
We have to find the power required to perform this task. Work done per unit time is called the power required. Mathematically, it is given by :
[tex]P=\dfrac{W}{t}[/tex]
W = work done
t = time taken
[tex]P=\dfrac{mgh}{t}[/tex]
[tex]P=\dfrac{200\ N\times 7\ m}{8\ s}[/tex]
P = 175 watts
Hence, the power required to complete this task is 175 watts.
