p=w/tin physics in dimensions
Answers
Answer:
DEFINITION NO. 1:
The rate of change of doing work is called power.
The rate of change of doing work is called power.Power=Work/time
The rate of change of doing work is called power.Power=Work/timeP=w/t
DEFINITION NO. 2:
The rate of energy consumption is called power.
The rate of energy consumption is called power.Power=E/t
DEFINITION NO. 3
Power is dot product or scalar product of force and velocity.
Explanation:
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Answer:
in physics, power is the amount of energy transferred or converted per unit time. In the International System of Units, the unit of power is the watt, equal to one joule per second. In older works, power is sometimes called activity.[1][2][3] Power is a scalar quantity.
Power
Common symbols
P
SI unit
watt (W)
In SI base units
kg⋅m2⋅s−3
Derivations from
other quantities
P = E/t
P = F·v
P = V·I
P = τ·ω
Dimension
{\displaystyle {\mathsf {L}}^{2}{\mathsf {M}}{\mathsf {T}}^{-3}}{\displaystyle {\mathsf {L}}^{2}{\mathsf {M}}{\mathsf {T}}^{-3}}
The output power of a motor is the product of the torque that the motor generates and the angular velocity of its output shaft. The power involved in moving a ground vehicle is the product of the traction force on the wheels and the velocity of the vehicle. The power of a jet-propelled vehicle is the product of the engine thrust and the velocity of the vehicle. The rate at which a light bulb converts electrical energy into light and heat is measured in watts – the electrical energy used per unit of time.