determine the horse power (h.p) = ?
force applied to move the box(f) = 10 pounds,
box lifted from a distance (d) = 3 feet
time taken to lift (t) = 10 sec,
the horse power is defined as amount of work required to move a load. the horse power is equal to 550 foot-pound per second
1 h.p = 550 foot-pound/second
it can also be defined as the the load that need to be move a body for certain distance in a certain amount of time.
h.p = (force × distance)/ time
= (10 × 3)/ 10
= 3 foot -pound/sec
hence, the horse power is needed to move the box is 3 foot-pound/second
important note: 1 h.p = 550 foot-pound/second = 746 watts