Question

a boy of mass 40kg rans a staircase of as step in 90. if the height of each step is 15cm. find his power. take g=10m/s²​

Answer 1

Answer:

A boy of mass 50 kg runs up a staircase of 45 steps in 9 s. If the height of each step of the staircase is 15 cm, find the power of the boy.