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## Homework Statement

A box with a mass of 5 kg sits in the middle of the bed of a pickup truck moving with a speed of 90 km/h. The maximum force of friction between the box and the truck is 15N. If the truck were braked uniformly to a stop in 125 m, would the box move? Justify your answer mathematically.

## Homework Equations

vf2= vo2 + 2ax???

## The Attempt at a Solution

a= (vf2 - vo2) / 2x

a= (0-9) / 2(125)

a= -0.36

yes is would

am i even close?