Looking Good Power In Physics Formula

I is the electric current.

Power in physics formula. Power lb x fts Power ft lbshp The rate of doing workis equal to the rate of using energysince the a force transfers one unit of energy when it does one unit of work. The Energy expended to do work in unit time is termed as Power. Which is related to how fast a job is done.

In this formula F denotes force applied In the object s denotes displacement of the object and t denotes the total time taken. Thus a Watt is equivalent to a Joulesecond. For historical reasons the horsepower is occasionally used to describe the power delivered by a machine.

Get the huge list of Physics Formulas here The derivation of these constants is as follows. Power is the rate at which work is done. In fluid power systems such as hydraulic actuators power is given by P t p Q displaystyle PtpQ where p is pressure in pascals or Nm 2 and Q is volumetric flow rate in m 3 s in SI units.

1 hp 7458 watts. Power is a time-based quantity. Power P is measured in watts W work done E is measured in joules J time t is measured in seconds s One watt is equal to one joule per second Js.

P F st. Moving the same object faster requires more power. Because work equals force times distance you can write the equation for power the following way assuming that the force acts along the direction of travel.

Moving that block 2 feet in 10 seconds requires twice as much power as moving the same block for the same distance in 20 seconds. The equation for power is P Wt P stands for power in watts W stands for the amount of work done in Joules or energy expended in Joules t stands for the amount of time in seconds. Power can also be written as.