A block slides on a frictionless horizontal surface while a position-dependent force…

PHYSICS · Subjective · AP · Physics 1: Algebra-based · Work Energy and Power · Work Energy and Power

Problem

2\,\text{kg}

block slides on a frictionless horizontal surface while a position-dependent force

F(x)=6+2x

(in newton) acts in its direction of motion. If its speed at

x=0

3\,\text{m}\,\text{s}^{-1}

, determine its speed after it has travelled

4\,\text{m}