question_answer

  In an experiment to measure his power, a student records the time taken by him in running up a flight of steps on a staircase. Use the following data to calculate the power of the student                  Number of steps =28 Height of each step = 20 cm Time taken = 5.4 s Mass of student = 55 kg Acceleration due to gravity =9.8 m/s2

Answer:

                Here, n = 28, h = 20 cm =0.2 m, t = 5.4 s m =55 kg, =9.8 m/s2 We know that the power of student is given by