A force in the +x -direction with magnitude F(x)=18.0N−(0.530N/m)x is applied to a 7.90 kg box that is sitting on the horizontal, frictionless surface of a frozen lake. F(x) is the only horizontal force on the box.

if the box is initially at rest x=0, what is the speed after it has travelled 17.0m?

Explanation:

The equation of equlibrium for the box is:

The formula for the acceleration, given in , is:

Velocity can be derived from the following definition of acceleration:

The speed after the box has travelled 17 meters is:

okay i have so many questions. but the big one here is: um wt..f is this mess? ?

. west