A 2500 Kg car is heading east at 20 m/s. IT slams on the breaks to avoid hitting a deer. It takes the car 50 meters to stop, what is the Uk between the car and the road.
Well I've been absent for school for two days, which is coincidentally when he was teaching this stuff.
So I'm not even exactly sure what Uk is.
I assume I'd use V^2=V0^2+2da ?