Answer:
1.0.024 hp
Step-by-step explanation:
We are given that
Constant force=F=112 N
[tex]\theta=37^{\circ}[/tex]
Speed of lawn mower,v=20 cm/s=[tex]20\times 10^{-2} m/s[/tex]
1 m=100 cm
1 hp=746 watt
We have to find the power output
Force applied by women on lawn mower=[tex]Fcos\theta=112cos 37^{\circ}[/tex]
Force applied by women on lawn mower=[tex]89.45[/tex]N
Power output,P=[tex]Fv[/tex]
Using the formula
Power output=[tex]89.45\times 20\times 10^{-2}=17.89 watt[/tex]
Power output,P=[tex]\frac{17.89}{746}=0.024[/tex]hp
Hence, option 1 is true
