Compared to yesterday, you did three times the work in the same time. To do so, your power output must have been yesterday's output.

Nine times.

Explanation:

You got three times as much work done (that multiplies it by 3) and you did it 3 times as fast (in one third of the time), that multiplies it by 3 again.

Equation: 3X3 = 9.

I hope this helps you!

Have a great day! :)

distance = 150m

displ = root (50 ^2 + 100^2)

root(2500+10000)

root 125000