Transfer of energy that occurs when an object MOVES. For work to be done the object must move and the motion of the object must be in the same direction as the applied force on that object.
W=Fd, units J , Nm
( J ) A SI unit for energy and work 1 Nm= 1 J = kg*m2/s2
( Nm) A SI unit for energy and work, 1 Nm= 1 J = kg*m2/ s2
RATE OF DOING WORK. Amount of work done in a certain amount of time; rate at which work is done. units- watts ( W ), J/s, Nm/s hp P=W(work)/t also power equation for energy transferred Power(P)(in watts)= energy transferred(J)/ time( in seconds)
(W) The SI unit for power. 1 W= 1 J/s = 1 Nm/s
746 W= 1 hp Named after English Engineer James Watt
one of these is equal to 550 foot-pounds per second. UNIT FOR POWER USED FOR LARGE MOTORS 1hp= 746 W