Variables= i dont understand what is meant by 80km/h at 25m/s and 50km/h at 10m/s
vi=25m/s? vf=10m/s? t=2.1s 1)find=-a? 2)displacement=? 3)at vf=0 displacement?
2. Relevant equations
1)i used d=(vi+v2)/2 x t
2)vf=vi+at to find acceleration
3)know how to compute but didnt because im unsure of my answer what to do with 80km/h what does this mean??? please help
3. The attempt at a solution