Ask Question
24 November, 10:30

A certain man needed 400N of force to pull a load through a distance of 150cm in 8s. Calculatell i) the work done by man ii) the power developed by man

+5
Answers (1)
  1. 24 November, 13:40
    0
    a) 600 J

    b) 75 W

    Explanation:

    Force = 400 N, distance = 150 cm = 1.5 m, time = 8s

    a) Work is the product of force acting on an object and distance (or displacement). The S. I unit of work is the joules.

    Work = force * distance = 400 * 1.5 = 600 J

    b) Power is the amount of energy transferred per unit time. It is the ratio of work to time. The S. I unit of power is watt

    Power = work/time = 600 / 8 = 75 W
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “A certain man needed 400N of force to pull a load through a distance of 150cm in 8s. Calculatell i) the work done by man ii) the power ...” in 📘 Chemistry if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers