A 2.0-kg body moving along the x axis has a velocity v_x = 5.0 m/s at x = 0.The only force acting on the object is given by F_x = (-4.0x)N,where x is in m.For what value of x will this object first come (momentarily)to rest? A)4.2 m B)3.5 m C)5.3 m D)6.4 m E)5.0 m

Question

Quizplus · Accepted Answer

The work done by the force must equal the initial kinetic energy for the object to come to rest. Integrate the force function to find the work done and set it equal to the initial kinetic energy to solve for x.

A 20-Kg Body Moving Along the X Axis Has a Velocity