A force of 20 N is applied horizontally to a 4.0-kg mass on

Last updated: 7/31/2022

A force of 20 N is applied horizontally to a 4.0-kg mass on a level surface. The coefficient of kinetic friction between the mass and the surface is 0.30. If the mass is moved a distance of 15 m, what is the change in its kinetic energy? 20 J 61J 46J 124J