show working out please Two iceboats (one of mass m, one of mass 2m) hold a race

Question

show working out please Two iceboats (one of mass m, one of mass 2m) hold a race on a frictionless, horizontal, frozen lake. Both iceboats start at rest, and the wind exerts the same constant force on both iceboats. Which Start Finish iceboat crosses the finish line with more kinetic energy (KE A. The iceboat of mass m: it has twice as much KE as the other. B. The iceboat of mass m: it has four times as much KE as the other. C. The iceboat of mass 2m: it has twice as much KE as the other. D. The iceboat of mass 2m: it has four times as much KE as the other. E. hey both cross the finish line with the same kinetic energy. o2016 Pearson Education, Inc.

Explanation / Answer

using energy conservation

change in Kinetic energy=Workdone by wind

work done =Force*distance

so it is same for both the masses

so they willhave same kinetic energy

option E

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