Question

a horse exerts a pull on the cart of 300N so that the horse cart system moves with a uniform speed of 18 km/hr on a level ground. Calculate the power developed by the horse in watt and also find its equivalent in horse power.

Answer 1

F=300N
speed=18km/hr
dis =18km=18000m
t=1hr=3600sec
p=w/t
=f×s/t
=300×18000/3600
=1500watt
=1500/746hp
=2.01h.p.(ans)