Physics

Problem

Which of the following expressions gives the instantaneous power

P

of a particle in terms of its kinetic energy

K

? a)

P = \dfrac{\Delta K}{\Delta t}

P = \dfrac{1}{2}\,\dfrac{\mathrm dK}{\mathrm dt}

P = \dfrac{\mathrm dK}{\mathrm dt}

P = \dfrac{K}{t}