- #1
KatieLynn
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Homework Statement
A 2500 kg car traveling to the north is slowed down uniformly from an initial velocity of 25 m/s by a 6240N braking force acting opposite the car's motion. What is the car's velocity after 2.52 s?
Homework Equations
F=m(Vf-Vi)/t
The Attempt at a Solution
This is how I used the equation
6240N=2500kg(Vf-25m/s)/(2.52s)
Solving for Vf I got 31.29m/s
The problem is that would mean the car's velocity is increasing, which it should be decreasing I think...