A particle moves along the positive -axis under the variable force newtons

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

Problem

A particle moves along the positive

x

-axis under the variable force

F(x)=x^{2}e^{-x}

newtons, where

x

is measured in meters. Determine the total work, in joules, required to move the particle from

x=0

x=\infty

. (a)

4\,\text{J}

(b)

2\,\text{J}

1\,\text{J}