How much time an agent will take to perform 400 J of work at the rate of 20W
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Given:
Energy - 400J
Power - 20W
To find : time taken by the agent
Explanation:
Power is the amount of energy transferred or converted per unit of time. Its SI unit is watt (W). If a body performs 1 joule of work in one second, it is 1 watt of power. SI unit of time is seconds, and that of energy is the joule.
numerically we can represent the same thing in this manner
power = energy/unit time
putting the given information in the equation, we get
20 w = 400/time
after solving, we get time equals to be 20 unit seconds.
THE CORRECT ANSWER IS 20 SECONDS.
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