While traveling on the highway with your 1000kg car, at 115.2 km/h, where you’re ABS (automatic
braking system) is disabled. This means braking is relying solely on the friction of your tires with the road when they stop spinning. A dear jumps into the road 50 meters in front of you. If the frictional force created by you slamming on your brakes is 4000N. What will your final stopping distance be? Will you
hit the dear? Assume no air resistance.
The Attempt at a Solution
Sum of Forces in The X direction
(Force O' Car) - (Force O' Friction) = -ma
I solved for acceleration and got -5.8 m/s^2
plugging these into the kinematics equation I got a time... 5.52 seconds
plugging that into the Xf = Xo + Vox t + 1/2 a t^2 I got a distance which is wrong
what gives? what am i doing wrong?