When a constant force is applied to a body moving with constant acceleration,power does not remain constant. For power to be constant,the force has to vary with speed as follows:

  • A
    $F \propto \frac{1}{v}$
  • B
    $F \propto \frac{1}{\sqrt{v}}$
  • C
    $F \propto v$
  • D
    $F \propto v^2$

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