Mechanical Power
Mechanical Power
Power is the rate of doing work — how quickly energy is delivered, distinct from the total work itself.
The power is P = W/t. where W is the work done and t the time taken.
Inputs
W := 60000 J=60000 Nm
t := 8 s=8 s
Divide work by time.
P := W/t=7500 W
Results
The same work done faster needs more power. This rating sizes motors and engines for a required task and pace.
Assumptions & limitations
- Average over the interval.
- Work and time consistent.
- Steady process.