Power dissipated by friction

The Power Dissipated by Friction compute the power dissipated by friction based on the work and time interval.

INSTRUCTIONS: Choose units and enter the following:

• (W) This is the work
• (Δt) This is the change in time

The Math / Science

The Power Dissipated by Friction formula is

    P=W/Δt

where:

• P = Power dissipated by friction
• W = work
• Δt  = time interval

Power is the amount of energy consumed or produced over time.

• Power is a measurement of the energy used to move vehicles (automobiles, trucks, tractors, trains, boats and airplanes).
• Power is the measurement of energy consumed by a motor and transferred to the drive or wheels. 
• Power is the amount of electrical energy consumed or produced by a system over time such as the energy produced by a hydroelectric dam or energy consumed by an electrical motor.

Power Units

Power is most commonly measured in watts (W).  One watt is equal to one joule per second (1 W = 1 J / 1 s).  Power is also measured in horsepower (hp) where 1 horsepower equals 745.7 watts.  Power is also measured in heat energy transfer as BTUs per hour (BTU/h).

Power Calculators

• Power from Change in Energy over Time
• Power based on Force and Velocity
• P = ΔE / Δt
• ΔE = P * Δt
•  Δt = ΔE / P 
• Power Dissipated by Friction
• Power from Force, Distance and Time
• Power from Resistance and Current
• Power from Voltage and Resistance
• Power from Current and Voltage
• Power textbook chapter (Light and Matter)

References

25.2 Oscillations by Benjamin Crowell, Light and Matter  licensed under the Creative Commons Attribution-ShareAlike license.