How Do I Calculate Horsepower?

  • Thread starter Thread starter donella
  • Start date Start date
  • Tags Tags
    Horsepower
AI Thread Summary
To calculate horsepower, one must understand that horsepower is a measure of power, defined as the work done over time. The formula for power is Power = Work/Time, where work is the product of force and distance. Since 1 horsepower equals 746 watts, converting the calculated power into horsepower involves dividing the result by 746. Knowing the weight of the object, the distance it moved, and the time taken allows for the calculation of work and subsequently power. This method clarifies the process of determining horsepower effectively.
donella
Messages
2
Reaction score
0
Hello! I'm working on some physics homework (obviously :smile: ) and I'm stuck on a certain problem.

I need to calculate horsepower, but I'm not sure how I do that. I know the weight of the moving object, how far it moved, and how long that took. I'm not asking anyone to do the problem for me, just tell me how I go about solving it.

Thanks!
 
Physics news on Phys.org
Horsepower is a unit of power obviously, and power is gauged by how much work is done per unit time

Power = Work/Time, with unit Watts. 1 Horsepower is 746 watts.
 
Thanks so much! My book wasn't very clear on the topic and I was confused. That clears things up a lot.
 
TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
Thread 'Variable mass system : water sprayed into a moving container'
Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
Back
Top