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shivanshi asthana Grade: 11
        

the force acting required to tow a boat at constant velocity is directky proportional to speed...if a speed 4 km/hr,corresponding power is 7.5kw....how much power is neede for speed=12km/hr?

7 years ago

Answers : (1)

Badiuddin askIITians.ismu Expert
147 Points
										

Dear shivanshi


given


F= α V


power P = FV


            =α V2


      7.5  =α * 16


        α   =7.5/16


so at 12 km/hr


   P = α * 144


       =7.5/16   * 144


       =67.5 kw


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Badiuddin

7 years ago
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