Answer: The work done by the boat is \(2\times 10^8 Joules\).
The power of the wind is \(5.55\times 10^4 watts\).
Explanation:
Force of the wind in the boat = \(2.00\times 10^4 N\)
Displacement of the boat = 10 km = 10,000 m
Work done = Force × Displacement =
\(2\times 10^4 N\times 10,000 m=2\times 10^8 Joules\)
Duration of time for which boat sailed = 1 hour
Power of the wind = \(\frac{Energy}{Time}\)
=\(\frac{2\times 10^8 Joules}{1\times 60\times 60 seconds}=5.55\times 10^4 watts\)
The work done by the boat is \(2\times 10^8 Joules\).
The power of the wind is \(5.55\times 10^4 watts\).
