Question

If a runner has a power output of 150 W over 10.0 s, then how much work does she do?15 J1,000 J1,500 J15,000 J

Answer 1

We have the next formula

$P=\frac{W}{t}$

where P is power, W is work, and t is time

we substitute the values

$150=\frac{W}{10}$

then we isolate the work

$W=150\cdot10=1500J$

the answer is 1,500 J