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s2008m [1.1K]
3 years ago
9

how much horse power is needed to move a box that has a force of 1,492 newtons a distance of 2 meters in 1 second

Physics
1 answer:
stellarik [79]3 years ago
5 0

This one is a piece 'o cake if you know the definition
of a horsepower, and impossible if you don't.

It is:            1 horsepower = 746 watts

Also, remember that  1 watt = 1 joule/second
                
Now:            Work = (force) x (distance)

To move this box 2 meters,

                     Work = (1,492 newtons) x (2 meters) = 2,984 joules

If you accomplished that feat in 1 second,
then you produced power of

                               (2,984 / 1) (joule/second) = 2,984 watts . 

                             (2,984 watt) x (1 HP / 746 watt) = 4 horsepower .

That's the solution, applying bullet-proof math and physics to the
given data.  But in the real world, I guarantee that you didn't do that.
______________________________________

By the way ... a comment regarding the terminology in the question:

The box doesn't "have a force" of 1,492 newtons.  That's the force
with which you ... or a horse, or an ox ... pushed against the box
in order to move it.

(And, if I might observe, that force is about 336 pounds,
so my money would be on the horse or the ox.)
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