A 3.5x10(adsbygoogle = window.adsbygoogle || []).push({}); ^{7}kg ship is travelling at 7 m/s. The ship is accelerated forward with a F of 4.5 x 10^{5}N over a distance of 2 km.

What is the final speed? V_{f}= 10 m/s

How long does it take the ship to traverse the 2 km? T = 233.33 seconds

What is the average power which the engines had to produce to accelerate the ship in part 1? I need help on this please.

You can do P = W/t = (4.5x10^{5}x 2000) / 233.333

P = 3.9 x 10^{6}watts which is the right answer.

However, how come you can't do P = (F)(avg velocity)

P = 4.5x10^{5}* (3/2) = 675000 watts??

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

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# Find the power of a boat that accelerated

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