How much time does it take to use 300 w of power to do 1800 j of work? round your answer to the nearest whole number.

Answer : The time it take will be, 6 seconds.

Solution : Given,

Power = 300 W= 300 J/s     (1 W= 1 J/s)

Work = 1800 J

Power : It is defined as the rate at which work is done.

Formula used :

Now put all the given values in this formula, we get

Therefore, the time it take will be, 6 seconds.

moving ball hits still ball. mover stops, hit ball moves. momentum transfer.

5 w for 1hr = 5x60x60 joules=300x60=3000x6=18,000j as total energy conversion. efficiency of bulb needed for radiant to thermal within 18000