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Question

A horse pulls a wagon horizontally with a force of 360N at an angle of 60 degree with the horizontal at a speed of 10km/h. What is the power  of horse??
 


Solution

Power =F^.V^
=F×v×cos60=F×v×cos⁡60
v=10km/hrv=10km/hr
=10×518=10×518m/sm/s
Power=360×10×518×12=360×10×518×12
=500W

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