question_answer

  Two women Shanti and Kamla each of mass 50 kg and 60 kg respectively climb up through a height of 10 m. Shanti takes 20 s while Kamla takes 40 s to reach. Calculate the difference in the power expended by Shanti and Kamla. [Assuming, g = 10

Answer:

  Mass of Shanti, Time taken by Shanti, Mass of Kamla time taken by Kamla Power expanded by Shanti, Power expanded by Kamla The power expended by Shanti is 250 J/s and power expended by Kamla is 150 J/s. The difference in the power of both is (250-150)=100J/s