How much work will a machine with a power rating of 1.1 x 10^3 watts do in 2.0 hours?

Question

asked May 25, 2019 219k views

2 Answers

Marx · Answer 1 · 2019-06-01T03:02:20+0000

Power Rating =
$1.1 * 10^3$ W

Time for which the machine is operating = 2 hours

Time in seconds = 2 × 60 × 60

Time = 7200 seconds

Now, we need to use the formula for work done.

Work done = Power × time

Work done =
$1.1 * 10^3 * 7200$

Work done =
$7.92 * 10^6$ Joules

Hence, work done by the machine in 2 hours is
$7.92 * 10^6$ J.