Question

work energy theorem for constant force.... Derivativon

Answer 1

When a constant force F acts on a body,
the small work done (dW) by the force in
producing a small displacement dr is given
by the relation,

When a constant force F acts on a body,
the small work done (dW) by the force in
producing a small displacement dr is given
by the relation,

dW = (F cos dr)

The total work done in producing a
displacement from initial position ri to final position rf

$\int\limits_{ri}^{rf}{dW}$

W = $\int\limits_{r_i}^{r_f}(Fcos \theta \ dr)$

= Fcos $\theta$ $\int\limits_{r_i}^{r_f} dr$

= $(Fcos\theta)$ ${(r_f - r_i)}$

Answer 2

hope it helps!!!

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