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??

Answer 1

Step 1: Given data

Force(F) = 360 N

Angle(θ)= ${60}^0$

Speed(V) = 10 km/h = $\frac{25}{9}$ m/s

Step 2: Formula used

$Power=\overrightarrow{F}.\overrightarrow{V}=FVcos\theta$

Step 3: Finding the power of the horse

$Power=\overrightarrow{F}.\overrightarrow{V}=FVcos\theta$

Putting all the values

$Power=360\times \frac{25}{9}\times cos{60}^0=360\times \frac{25}{9}\times \frac{1}{2}$

After solving

Power = 500 W

Hence the power of the horse is 500 W.