Which of the following expressions gives the work done by a particle moving from…

PHYSICS · Single correct · CBSE · Physics · Work, Energy and Power · Work, Energy and Power

Problem

Which of the following expressions gives the work done by a particle moving from position

x_i

x_f

under a force

F(x)

acting along the

x

-axis? (a)

\displaystyle\frac{1}{2}\left[ F(x_i)+F(x_f) \right] (x_f-x_i)

(b)

\displaystyle\int_{x_f}^{x_i} F(x)\,dx

(c)

\displaystyle\int_{x_i}^{x_f} F(x)\,dx

(d)

F(x_i)\,(x_f-x_i)