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