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45 votes
Power can also be written as force times velocity. Is this true or false?

User Saeed Gholamzadeh
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1 Answer

21 votes
21 votes

The power in terms of the work done is,


P=(D(W))/(Dt)

Where dW is the small work done and dt is the time taken,

The work done in terms of force is,


DW=F\cdot Dx

where Dx is the small dispalcement of the object,

The power becomes,


\begin{gathered} P=F\mathrm{}(Dx)/(Dt) \\ P=F\cdot v \end{gathered}

Thus, the power is the force times velocity.

Hence, the given statement is true.

User Bsm
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