1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Horsepower in inches per second?

  1. Sep 25, 2015 #1
    Hello Wizards!

    O.K. I know that 1 horsepower is generated by moving 300 lbs 100 feet in one minute.

    The question I seem unable to answer is....

    How many horsepower is generated by moving 19 lbs 1-1/2 inches in 1 second?

    Help please ( my brain is exploding )

    Best Regards,

  2. jcsd
  3. Sep 25, 2015 #2


    User Avatar
    Gold Member

    How many inches in a foot? How many seconds in a minute? Just do the unit conversion.
  4. Sep 25, 2015 #3


    User Avatar

    Staff: Mentor

    The way that's worded makes it sound like the 300lb is the weight of the object, not the force...
  5. Sep 27, 2015 #4


    User Avatar
    Staff Emeritus
    Science Advisor
    Homework Helper

    Like a lot of things people "know", this sounds like it might be true. However, the facts get in the way of a good story.

    One horsepower = 550 foot-pounds of work done in one second, or 33,000 foot-pounds of work done in one minute.

    Whether it actually takes 300 foot-pounds of work to move 300 pounds a distance of one foot is another story.
  6. Sep 28, 2015 #5
    Thank you all!
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook